Sorry, but I must strongly disagree. In fact, these specific actions withhold me from buying multiple xenforo licenses (which I fully intended), because these same people who were so eager to withdraw their mods/graphic packs from vb.org may be withdrawing their xenforo releases at will if any disputable or unforeseen action is done by the xenforo team.
These unjustified actions by so called 'supporters' are directed at the wrong people (fellow forum admins) and do nothing to harm Internet Brands. For every leaving dev/designer another one steps in. As Paul M. stated: development of mods and/or releases of graphic sets have not slowed down in any measurable way at vB.org. You're just hurting and disrespecting the wrong people.
As for me: I will never ever consider hiring and/or using releases from Floris, Shelley, entertainer or any other developer/designer who've withdrawn their releases from vB.org, nor will I ever recommend their services to my network (in fact, quite the opposite). They are no better than IB for taking these actions against their fellow peers and it is reflecting very badly on xenforo imho.