After 4 months of running on Xenforo I'm looking to go back to vBulletin. My biggest reason is the lack of updates and communication from XF on those updates. Our search traffic has dropped signifantly. Though this maybe due to my error of setting member profiles to high priority in our sitemap. The editor is a major pain in the arse. A couple of my members have been complaining to me about the editor acting funky, nor letting them edit text properly (inserting characters and lines etc). I didn't believe them until I ran into it last week. A search of XF.com shows a a moderator saying the editor "is quirky" Honestly with vBulletin at least I know what I'm getting. With XF, I don't.