IB is suing Xenforo to squash a startup competitor (read: bullying). IB knows they don't have a case .... winning isn't the goal, it's bullying a challenger.
So at the end of the day, IB is going to lose the suit against Xenforo.
But, for the 1 in a million chance they do win, they'll still lose.
Why ? Because vBulletin was a derivative work inspired by UBB.
So IB, even if you win, you lose.
Unbiased Historical Map of Forums: (courtesy of forum-software.org).
I wonder if Mindraven could testify for Xenforo ?
Surely Mindraven is a more reasonable company than IB !