Would it be possible (and useful) for the site to maintain LaTeX preferences/short-cuts, similar to style files, attached to usernames or topics?
Or even better, to allow users to create a list of different "style files" which could be selected when answering any particular question. As an example, if a user wanted to write a long answer to a quantum mechanical question, they could select "Dirac-Notation" and then use handily created short-cuts like \expectation{Operator} or \state{indices}.
I think this would allow answerers to stop worrying about left and right brackets and pipes and various things: and therefore removing another barrier to giving fuller and clearer replies.
All comments welcome.