@magnumssaid How do I "accept" a new game? Often new chess players will challenge me to a new game. They choose white, then won't make the first move. Is there something I'm not doing?
I don't think so. If they're White, theh need to move. If they don't, nothing much Black can do.
You could message them. It won't work for a real ghost player, but it might remind someone who isn't familiar with the site yet that they have another game. But in the end, the game is waiting for their moves, not yours.