One of the most interesting innovations that Twitter gave us which I don't think is appreciated enough is the ability to reference a human being by a single, globally unique identifier
Being able to say "I learned this from @..." or "This project by @... is really cool" is such a neat way to be able to interact with the world
It can be abused too, but I really loved that ability to reference other real humans
We get that on Mastodon too, but only for the people who've moved here so far!