custom preamble should work for all site content

[holtzermann17]

Users create custom preambles - but those aren't used when we render things like forum posts, problems, corrections, collections, etc.

If fixing this properly means making every body into a LaTeX field, that seems like a relatively big overhaul. But I'm not sure that's the only way to do it.

[dginev]

Isn't it a matter of having the TeX editor module enabled? What is different?