A great forum system, a bit lacking in some respects (attachments) but all around good. No it is not a mybb clone, you'd have to be high to think it was, it doesn't look anything like it nor does the code.

A very simple, clean, and fresh forum software. Unique in its own way. Can't wait for any further updates that make it even more better ^_^

Great forum if you require effectiveness and simplicity. UseBB is - in opposition to what has been said - not a clone at all of any forum. Unlike most forum packages UseBB is not about the amount of features but the usability of the system. If you are looking for yet another vB or IPB clone, UseBB is unfortunately not for you.

Lookes like a MyBB clone