MyBB Community Forums

I don't think it would be difficult. Most of the errors would be changing "&id=xxx&sortid=" to "&id=xxx&sortid". Others include closing img tags at the end, same with input.

Just an idea .

(X)HTML validity is nice, however, our primary focus is getting everything to work properly. As long as it also does that without & this is not a pressing issue

And if I remember correctly, in MyBB 1.1, Chris plans to make everything XHTML compliant.