I'm not leaving Twitter because they canceled somebody or because they don't have canceled somebody else.
I'm leaving Twitter because it no longer provides me an interesting timeline with content that I care about.
Enough people in my network left (for whatever reason) and that's enough to create a network effect.
I tried blocking musk and other accounts that created what I perceived as just noise I don't care about (I'm not a us resident, I've had enough of your culture war. It was educational and all but I'm also interested in other things!). But that wasn't enough, the Twitter recommendation engine keeps notifying threads about people I don't follow that talk about things I don't care about. Often just because Musk replied (and since I blocked him I don't really notice that until I click to see to details of a hidden post).
It's a shame. I'm not a social media person. I found Twitter to have been a nice low friction way to subscribe to interesting topics and people.
This whole drama has just turned it into a permanent worst version of itself