I will be creating a forum over the next few days and I'm very interested in xenForo. I was gonna go with VB 4, but having read good things about XF I'm now unsure. I need some more info on XF before I take the plunge:
1. How resistant to spam is xenforo? I know this is something VB is well known for.
2. How good is XF for SEO? This is the most important consideration for me.
3. Is the XF team still active and updating the software?
4. I plan on creating a system where members gain points for various tasks (posting, creating a thread, getting their thread voted up/getting reputation points, etc). They will then be able to redeem points for a gift certificate or something like (doesnt need to be completely automated, can be more like a contact form). Does software like this already exist? And if not, how easy would it be to create?
5. Are there any other advantages/disadvantages versus VB?