Is there a better way to reference something at the end of a block of text?

I suggest the parnotes package. (I also took the liberty to refactor how you are encoding your character information a little bit, which you are free to ignore.)

\documentclass[letterpaper, 12pt]{article}
\usepackage[left= 2.2 cm, right=2.2 cm, top = 2.2 cm, bottom = 2.2 cm]{geometry}

%Font stuff here
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[]{venturis}

%Goddamn special notes
\usepackage[
notessf,     % default: roman
% breakwithin, % default: paragraph notes
]{parnotes}

%Goddamn tables.
\usepackage{booktabs}

% etc.
\usepackage[svgnames]{xcolor}

%Load last stuff.
\usepackage{hyperref}

\newcommand{\headfont}{\bfseries\sffamily\color{Maroon}}% <-- whatever you like
\newcommand*{\morph}[1]{{\headfont Morph:} #1}
\newcommand*{\skills}[1]{{\headfont Skills:} #1}
\newcommand*{\implants}[1]{{\headfont Implants:} #1}
\newcommand*{\traits}[1]{{\headfont Traits:} #1}

%% this command assumes each character has exactly the same list of major categories (not sure if this is true...)
\newcommand{\chardesc}[4]{%
  \small\noindent
  \morph{#1}\newline
  \skills{#2}\newline
  \implants{#3}\newline
  \traits{#4}
\par\parnotes}

\begin{document}

\chardesc{Menton}%
{Academics: Linguistics 85, Academics: Neurolinguistics 80, Art:
  Logograms 50, Interests: Accents 60, Interests: Dialects 75,
  Interests: Synthetic Languages 80, Interests: Xenolinguistics 80,
  Interfacing 50, Investigation 50, Language: Native Gaelic 95,
  Language: Any%
  \parnote{Gailteach knows hundreds of human languages and dialects;
    common languages (Arabic, English, French, Hindi, Japanese,
    Mandarin, etc.)  have a typical rating of 75; uncommon languages
    60, and synthetic \& obscure languages (Esperanto, Klingon,
    Sumerian, \&c.) 50.}%
  , Networking: Firewall 25, Networking: Scientists 25, Profession:
  Interpreter 75 Profession: Linguist: 80, Profession: Teacher 60,
  Profession: Translator 65, Research 77%
  \parnote{That is, he hates it, but he knows how to do it.}%
}%
{Basic Biomods, Basic Mesh Inserts, Cortical Stack, Eidetic Memory,
  Hyper-Linguist, Math Boost, Multi-tasking, Oracles}%
{Fast Learner, Mental Disorder (Severe phobia of
  psychosurgery%
  \parnote{And, really, who isn't?}%
  ), Neural Damage
  (Amnesia, Blackouts)}

\bigskip

\chardesc{Menton (without commentary)}%
{Academics: Linguistics 85, Academics: Neurolinguistics 80, Art:
  Logograms 50, Interests: Accents 60, Interests: Dialects 75,
  Interests: Synthetic Languages 80, Interests: Xenolinguistics 80,
  Interfacing 50, Investigation 50, Language: Native Gaelic 95,
  Language: Any, Networking: Firewall 25, Networking: Scientists 25,
  Profession: Interpreter 75 Profession: Linguist: 80, Profession:
  Teacher 60, Profession: Translator 65, Research 77}%
{Basic Biomods, Basic Mesh Inserts, Cortical Stack, Eidetic Memory,
  Hyper-Linguist, Math Boost, Multi-tasking, Oracles}%
{Fast Learner, Mental Disorder (Severe phobia of psychosurgery ),
  Neural Damage (Amnesia, Blackouts)}


\end{document}

Setting things in a minipage (based on a discussion in chat) is also an option, since minipages have their \footnotes grouped at the bottom of them (by default):

\documentclass[letterpaper, 12pt]{article}
\usepackage[margin=22mm]{geometry}% http://ctan.org/pkg/geometry
\usepackage{etoolbox}% http://ctan.org/pkg/etoolbox

%\patchcmd{<cmd>}{<search>}{<replace>}{<success>}{<failure>}
\patchcmd{\endminipage}{\unskip}{\vspace*{-.7\baselineskip}\unskip}{}{}
\makeatletter
\renewcommand\@makefntext[1]{% From article.cls
    \parindent 1em%
    \noindent
    \hb@[email protected]{\@makefnmark\hss}#1}%\hb@[email protected]{\hss\@makefnmark}#1}
\newenvironment{statblock}
  {%\renewcommand{\thefootnote}{\@fnsymbol{footnote}}% Footnotes are symbols
  \let\footnoterule\relax% No footnote rule
   \setlength{\footskip}{0pt}\noindent\minipage{\linewidth}\small\strut\ignorespaces}
  {\strut\endminipage}
\makeatother

\begin{document}
{\small
\noindent\textbf{Morph:} Menton\\
\textbf{Skills:} Academics: Linguistics 85, Academics: Neurolinguistics 80, Art: Logograms 50,
Interests: Accents 60, Interests: Dialects 75, Interests: Synthetic Languages 80, Interests:
Xenolinguistics 80, Interfacing 50, Investigation 50, Language: Native Gaelic 95,
Language: Any*, Networking: Firewall 25, Networking: Scientists 25, Profession:
Interpreter 75 Profession: Linguist: 80, Profession: Teacher 60, Profession: Translator 65,
Research 77\\
\textbf{Implants:} Basic Biomods, Basic Mesh Inserts, Cortical Stack, Eidetic Memory, Hyper-Linguist, Math Boost, Multi-tasking, Oracles\\
\textbf{Traits:} Fast Learner, Mental Disorder (Severe phobia of psychosurgery), Neural Damage (Amnesia, Blackouts) \\{}
*Gailteach knows hundreds of human languages and dialects; common languages (Arabic, English, French, Hindi, Japanese, Mandarin, etc.) have a typical rating of 75; 
uncommon languages 60, and synthetic \& obscure languages (Esperanto, Klingon, Sumerian, \&c.) 50.
}

\bigskip

\begin{statblock}
  \textbf{Morph:} Menton \par
  \textbf{Skills:} Academics: Linguistics 85, Academics: Neurolinguistics 80, Art: Logograms 50,
    Interests: Accents 60, Interests: Dialects 75, Interests: Synthetic Languages 80, Interests:
    Xenolinguistics 80, Interfacing 50, Investigation 50, Language: Native Gaelic 95,
    Language: Any\footnote{Gailteach knows hundreds of human languages and dialects; 
      common languages (Arabic, English, French, Hindi, Japanese, Mandarin, etc.) have 
      a typical rating of 75; uncommon languages 60, and synthetic \& obscure languages 
      (Esperanto, Klingon, Sumerian, \&c.) 50.}, Networking: Firewall 25, Networking: 
    Scientists 25, Profession: Interpreter 75 Profession: Linguist: 80, Profession: 
    Teacher 60, Profession: Translator 65, Research 77 \par
  \textbf{Implants:} Basic Biomods, Basic Mesh Inserts, Cortical Stack, Eidetic Memory, 
    Hyper-Linguist, Math Boost, Multi-tasking, Oracles \par
  \textbf{Traits:} Fast Learner, Mental Disorder (Severe phobia of psychosurgery), 
    Neural Damage (Amnesia, Blackouts)
\end{statblock}
\end{document}

If is also advisable to define a macro that will set the "characteristic titles", since it allows for easy change later. For line spacing adjustment, I suggest adding the setspace package and using \setstretch (say).