Is there a negative effect if using @ instead of \
<p>I've been using doxygen for a little while now. The editor(N++) I use creates doxygen comments with backslashes for the special commands.</p>

<p>The doxygen manual says:</p>

<blockquote>
  <p>All commands in the documentation start with a backslash ( \ ) or an at-sign ( @ ). If you prefer you can replace all commands starting with a backslash below by their counterparts that start with an at-sign.</p>
</blockquote>

<p>So doxygen doesn't really care about it.
Or causes using a \ more trouble than using an @.</p>