@nemo55 I'm sure there are some things they do better but overall not so sure it's them currently getting a lot of registrations is the result of people being more impressed by the features.
The hype cycle has switched between different platforms constantly and BS just happened to be the one in vogue when Musk did a particularly disgusting series of moves and a lot of people finally took notice. Most of those people never even tried Mastodon.
I also don't think it necessarily lasts.