I have recently come across a user (who I shall not name) who has posted $150+$ answers and has accumulated a reasonable amount of reputation, but who uses no LaTeX / MathJax formatting at all in any of these answers. A quick look at this user's top 15 answers shows:
All $15$ answers were originally posted with no formatting;
$11$ out of $15$ answers were later edited (by other users) to include proper formatting;
$5$ answers have comments to the effect of "please use LaTeX to format your answers on this site." The user has responded to a couple of these in a potentially positive way but has made no effort to start formatting in MathJax.
My question is: is this acceptable behavior?
I think we should be lenient with users who are learning LaTeX syntax, as it can be somewhat daunting. In particular, I agree with this answer with regards to questions lacking formatting. I am also happy to help users out who don't get all the LaTeX formatting right, by adding
But if the user is unwilling to try formatting at all, and just takes advantage of the fact that others format his/her questions for him/her, I am not as inclined to be lenient. Even a simple attempt to add
$ signs around formulas can come a long way, and I would greatly appreciate such an attempt.
What can / should be done about this?