Aw, they actually did the ban. That’s unfortunate.

On one hand, yes, legal liability and all that, but on the other hand half the site is copyright violations. The law only matters sometimes. I say this as someone who has hosted web communities myself, there’s no reason to be banning for something like age on these instances, especially when we’re talking 16 and not 12. It’s unenforceable and trivial enough that there’s no legal pressure to do so.