I always had no use for #Twitter
Every time I dipped my toe into that platform I found it limited, constraining even, starting with its stupid character limit.
For me the appeal of #Mastodon is that it's far, far better than Twitter because of its interface to #ActivityPub / #Fediverse.
Here the platform isn't limited to exceedingly short posts, but can instead support long posts AND so much more: rich multimedia, and types of content that the standard hasn't even thought of yet.
For me the appeal of Mastodon is that it's exponentially better than Twitter ever was, empowering users and enabling forms of expression that Twitter never could match.