We've been getting more frequent visitors from a particular troll, and I find it educational to be able to reference these deleted questions and answer exchanges with this particular troll. Is it possible to still access these deleted Q&A's?
I'm not sure any of his posts could be described as educational, but yes, you can see them as long as you have the links saved. Mods can see deleted posts on user profiles, but we've been destroying the accounts, so the profile doesn't exist anymore. I wouldn't put too much time into it; he's been a problem on other SE sites for ages, so you're probably not going to come up with anything new. Just flag the posts as spam and they'll get automatically deleted or we'll get rid of them
On a related note, don't waste your time with editing the posts, leaving comments, etc. You can if you really want to, but it's not going to help, and the post is going to end up deleted anyway