Pelicanen

The network effect is one reason, if users are responsible for the content then there will be a shortage of content until enough users join.

Beyond that, humans are social creatures and want to fit in. If your community mainly hangs out on one platform, people will want to be a part of that platform. What helps is if people with a large enough following or entire communities make the decision to change platform, but that can be tricky.

Oil prices going up makes his oil-producing buddies richer and the deal with Venezuela more profitable. No matter how this ends, he and the rest of the psychopaths in his orbit profit from it.