I take that to mean that we are no longer allowed to make 50 foot tall monstrosities or super tiny costumes anymore...? Ah well, was fun while it lasted... In moderation, it could have been good for RPing, but I guess some folks took it a wee bit too far...
Yes, there were no upper bounds on the scale, which could have been a problem if more people started pushing the limits.
Currently it's set to reject costumes outside the limits of the character creator's sliders, just because those were easy enough to find.
I'll probably relax the limits a bit so that people can make smaller than normal characters again, once I get a chance to figure out some reasonable numbers.
When we get the private moderated RP spaces, it's likely that the validation will be disabled for those areas, so you could have an alternate giant costume that works there but not in the public zones.
Is this validation also going to impair costumes that have been "hacked" to use NPC-only models?
Those are still not validated, for the moment. It could be easily added if necessary but so far there hasn't been a need to. If I do have to enable it, I'll probably do so in a way that still allows the NPC pieces selectable in Icon NPC mode, but disallows geos that aren't designed for the player rig.