Your example with YouTube is not an anti-spam measure, it’s them trying to restrict and create exclusivity with their content, they’re just lying and calling it anti-spam. I think it’s better to have some annoying automated spam defense like Reddit and the gang does than it is to be judged on my worth and denied because I’m not interesting enough or meet some dumb criteria to join the exclusive clubs Lemmys are slowly becoming fuck that.
I’m sorry I wasn’t entirely clear, BIG server, with open sign-ups. The complaints about finding people aren’t really valid when we have big servers like this one or mastodon.social. Such servers have the best reach and the easiest onboarding. Pick those.