Last modified: 2013-07-03 13:46:27 UTC
Similar to bugs 50093 and 50527; users need to be warned when they're using markup in the VE. This is a source of a pretty large amount of corruption on enwiki, and I'm not sure how sustainable the community's patience for that is.
I strongly advise that this be made pretty high-priority (See above).
*** This bug has been marked as a duplicate of bug 49820 ***