I will start:
It was after I saw that it rebranded to “X”. Set my acc to private, logged out and deleted it from my phone over the course of a day.
I asked a similar question on Masto months before, and decided that it would be great to do it here.
The moment it was confirmed that Musk would buy it, I left the platform.
I deleted my 12 year old account the day his buyout went through and never looked back.