Like the title says. I just heard about it a few days ago from YouTube. It sounds really cute and gay, but I was wondering if it's just nostalgia bait or if they're actually achieving some sort of community over there. Also, whether there are a lot of leftists there or if they tend to get pushed out. Is it still up and thriving or did it peak a couple of years ago?
And uuuuh... if you made a cute lil website of your own, can I see? 
I won't be posting my own site here for opsec reasons, but I've met a fair amount of fellow commies and anarchists in the 5 years I've used neocities. It's not really social media, but there's a small community and one of the most frequented sites there has a bunch of marxist 101 resources which is pretty neat