I'm one of two administrators on a discussion board. The other admin (Stovebolts) should be registering here soon as well so that we can get a feel for the migration process before we commit. As with many others, we're determined to move from vBulletin. We're currently running vB 4.13. My chief concern is spam control. I've read a few threads here about your ability to deal with it, but I haven't seen anything addressing it the way we currently do.
We've tried quite a few mods that have promised to do the trick. Some of them were quite complex, and others were simple. In the end, they failed in their delivery, and we were forced to moderate roughly 50-75 spam-bots per day. Even though they didn't make it to the board to bother our membership, they were quite taxing on our team of about 10 moderators. Our board averages about 400 posts per day.
What finally worked, and worked perfectly, was a mod that boots any first post by a new member with a hyper-link included. When a new member registers and posts with a hyperlink, they are given an error message explaining exactly why their message was not accepted. Of course, spam-bots don't read that, so they continue to pound away with the same program, and the system deletes their posts before they even reach our moderation queue. They continue to pound their spam, and we're oblivious to it. Live members will read the error message and make the necessary changes. Our spam volume immediately disappeared with the activation of this mod, and it's been terrific!
Can something similar be applied using XF? If not, can you direct me to a link showing exactly how what you do offer works as well. I have more migration questions, but I'll keep the length of my first post down with this one for now.