Mastodon.social has no advantages at all over any other server. It has no special status or special privileges, it uses exactly the same software as other Mastodon servers.
In fact I'd strongly advise people *NOT* to sign up on mastodon.social, here are the reasons why: https://fedi.tips/its-a-really-bad-idea-to-join-a-big-server
TL:DR - It's far far too big, it's putting the entire decentralised nature of the Fediverse in danger.
If you want help choosing a good reliable server, have a look at https://fedi.garden
