Users can now see recent deleted questions in their profileUsers can now see recent deleted questions in their profile. We're normally not particularly eager to direct folks in that direction though, since in many cases they'd be hard-put to salvage them: most folks who hit the quality bans have made a lot more mistakes than just deleting their questions, if they had anything to do with the deletions at all...
Warning them first is a reasonable idea though. In fact, warning folks who try to delete their own answered questions would be a good idea even if the q-ban didn't exist - in many cases, this is just plain rude! So as of right now, anyone trying to delete their own question will see this:
Folks who are already banned from asking questions who try to delete their own questions will see a somewhat more candid warning:
Deleting unanswered questions can actually be a good idea (it won't help you get out of a q-ban, but if you're prompt about cleaning up after yourself it can save you from getting in deeper), so we won't be warning about that. Never the less, for those who are banned, editing to improve existing questions will remain a more effective means of getting out - so those who opt for deletion instead are just digging their own grave.
It pays to read that help center article linked to from all these warnings...
