They can terminate your license if you don't abide by their agreement and then you would have cease using the software.
So then it is almost like vBulletin.
They can cease the use of the software whenever they want.
Unlike vbulletin, the UBB doesn't even have a way to shut off a license (as there are no callbacks in the software). If you where in violation of the license agreement they would ask you stop using the software, but the only real reason they'd ever do that is if you where giving their softwareout.
Good that there is no callback, bad that they can cease the use of the forumsoftware.
