I'd vote to allow social and public interest events like block parties, music shows, lectures, political rallies, etc.

I think self-promotion is fine as long as it's disclosed and the same things isn't posted too frequently. For example, if someone on this sub is putting together a Mexican cooking class, I'd like to hear about it. But if they run a class every Sunday, they shouldn't post about it more than once every 6? months or so.