Latex package - Convenient toggle-able censoring of information for double-blind review e.g. for IEEEtran class

doubleblind.sty

% doubleblind - @maxanier https://gist.github.com/maxanier/c63f9b5dede1ecda6cf9b0e346ec413d
% Convenient toggle-able censoring of information for double-blind review e.g. for IEEEtran class
% Supports linebreaks in text
%
% Include as
% \usepackage[]{doubleblind}
% and add `anonym` option to enable censoring:
% \usepackage[anonym]{doubleblind}
%
% Provides the following commands:
% \anonymize{}
%    Reliably removes the contained content and replaces it with blank space if anonym is enabled
% \includegraphicsanonym[options]{image1}{image2}
%    Includes the first image when anonym is enabled, and the second one otherwise
%
% If loaded it modifies the following commands to automatically censor the content:
% \thanks
% \IEEEauthorblockN
% \IEEEauthorblockA


\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{doubleblind}[2022/06/10 Simple anonymization for double blind review]

% Use soulutf8 to allow unicode characters like ä
\RequirePackage{soulutf8}


%Define if condition identifier with default value
\newif\if@anonymize
\@anonymizefalse


% Package options
\DeclareOption{anonym}{\@anonymizetrue}
\DeclareOption*{\PackageWarning{doubleblind}{Unknown ‘\CurrentOption’}}
\ProcessOptions\relax


% Provide anonymization commands - Basic functionality based on https://tex.stackexchange.com/a/26303/272094

\if@anonymize
\DeclareRobustCommand*\anonymize{%
    \SOUL@setup%
    \def\SOUL@everytoken{\phantom{\the\SOUL@token}}%
    \def\SOUL@everyhyphen{%
        \discretionary{%
            \SOUL@setkern\SOUL@hyphkern%
            \phantom{\SOUL@sethyphenchar}%
        }{}{}%
    }%
    \def\SOUL@everyexhyphen##1{%
        \SOUL@setkern\SOUL@hyphkern%
        \hbox{\phantom{##1}}%
        \discretionary{}{}{%
            \SOUL@setkern\SOUL@charkern%
        }%
    }%
    \SOUL@%
}
\newcommand{\includegraphicsanonym}[3][]{\includegraphics[#1]{#2}}
\else
  \newcommand{\anonymize}[1]{#1}
  \newcommand{\includegraphicsanonym}[3][]{\includegraphics[#1]{#3}}
\fi


% Overwrite IEEEtran commands
\ifdefined\thanks
\NewCommandCopy{\IEEEtranthanks}{\thanks}
\renewcommand{\thanks}[1]{\IEEEtranthanks{\anonymize{#1}}}
\fi

\ifdefined\IEEEauthorblockN
\NewCommandCopy{\IEEtranIEEEauthorblockN}{\IEEEauthorblockN}
\renewcommand{\IEEEauthorblockN}[1]{\IEEtranIEEEauthorblockN{\anonymize{#1}}}
\fi

\ifdefined\IEEEauthorblockA
\NewCommandCopy{\IEEtranIEEEauthorblockA}{\IEEEauthorblockA}
\renewcommand{\IEEEauthorblockA}[1]{\IEEtranIEEEauthorblockA{\anonymize{#1}}}
\fi

Include with

%\usepackage[anonym]{doubleblind} %To enable censorship
\usepackage[]{doubleblind}

\thanks
\IEEEauthorblockN
\IEEEauthorblockA

To use alternative images (if the original e.g. contains logos):

\includegraphicsanonym[width=0.4\textwidth]{cencored.jpg}{original.jpg}

To censor alternative content:
\anonymize{lorem ipsum}

Unlike \phantom line breaks are supported.

Using this as is with the latest IEEEtran.sty gave me an error upon processing \maketitle. Apparently, something doesn't like this being pseudo-empty, so I fixed it to say "anonymous" instead:

\ifdefined\IEEEauthorblockN
\NewCommandCopy{\IEEtranIEEEauthorblockN}{\IEEEauthorblockN}
\renewcommand{\IEEEauthorblockN}[1]{\IEEtranIEEEauthorblockN{
    \if@anonymize
        Anonymous
    \else
        #1
    \fi
    }}
\fi

\ifdefined\IEEEauthorblockA
\NewCommandCopy{\IEEtranIEEEauthorblockA}{\IEEEauthorblockA}
\renewcommand{\IEEEauthorblockA}[1]{\IEEtranIEEEauthorblockA{
    \if@anonymize
        Anonymous Affiliation
    \else
        #1
    \fi
    }}
\fi