I propose a syntax plugin to mark a point in a wiki page for improvement. This is a bit like the current FIXME magic replacement, but for cases where the current editor wants to draw another specific user's attention to the page so that they can make an edit using their particular knowledge.
I realize that in a public wiki this might be less useful, but in a team wiki the application is hopefully obvious.
I'd like to be able to type something like:
<FIXME Some.User>
to get a result like the current FIXME but with a username attached, and where each user could see the pages on which a FIXME tag is aimed at them, perhaps something like:
<FIXME -listIssues Some.User>
to output a list of pages where Some.User has been FIXME-tagged; this should default to the logged-in user.