The discussion What should the MathJax delimiter be? seems to have a clear answer: the community would prefer
$ to the current
\$. I'm therefore formally proposing this as a request to the site administrators.
Both delimiters (
\$) are now active, until existing comments and posts can be cleaned up to use
Update Jun 21 2014: All 37 comments with the old syntax have been edited (thanks Tim Stone for updating the Data Explorer with Puzzling!). All that's left is questions and answers now. There are only 70 of them, and you can help edit! (Please only do so if you have edit privileges; avoid flooding the edit queue with suggestions that just change the delimiter.) If there are multiple issues with the posts that you are editing, fix them as well!
Update Jun 23 2014: All 70 posts with the old syntax have been edited. I have requested that the delimiter now be changed to only
$. Thanks to all who helped with the cleanup!