The closed signups on mastodon.social are only temporary. They've really had a huge spike of signups after Musk took over Twitter and people jumped boats, as we

The closed signups on mastodon.social are only temporary. They've really had a huge spike of signups after Musk took over Twitter and people jumped boats, as well as a lot of automatically generated spam accounts that mods are still trying to prune. I'm quite confident that signups will reopen once the situation gets back in control. When it comes to muting, in my experience you don't have to mute 98% of the profiles. Spam usually comes from a handful of instances that are relayed to the instance you're registered - in the Fediverse instances can relay to one another, and tap into each other's feeds. If you have a lot of spam, that's usually because of the content from 3-4 relayed instances. Good instance admins usually intervene in this cases and mute that spam on instance level. If they don't, you can usually mute those few instances yourself, instead of muting every individual account.