it would take a lot of convincing for me to welcome Facebook into any project I'm part of. I've pointed out to one of their POs that they are violating OSMs copyright by not showing any attribution when browsing on mobile. I'm not confident it will ever be fixed. When they ask to be integrated into a project they're already abusing, the answer should be hard no. I'll reply to this comment if they start respecting OSMs copyright (unless comments get locked?). Just musing... but where do I file a DMCA?