What do you mean you can’t come up with a transportation solution to transport millions of people around at any given moment that’s more convenient than them being able to travel to their destinations on their own without a long schedule?
In case I need it, /s.
This wouldn’t even be GMod’s responsibility? Valve owns the steam workshop, so anything violating DMCA should go to steam, not GMod. It’s not like GMod themselves are hosting the content.