I'm not going to go deep into the reasons (https://www.lipstickalley.com/threads/celebrities-are-starting-to-boycott-x-twitter-by-deactivating-their-accounts-including-don-lemon-jaime-lee-curtis.5768648/) why she may have likely done this (https://www.instagram.com/p/DCXsl9aS5d2/?hl=en&img_index=1) because this isn't a political forum, but she said that she's now on Bluesky (https://bsky.app/profile/alyssamilano.bsky.social):
DCXsl9aS5d2


How Alyssa Milano Uses Twitter (https://www.businessinsider.com/how-alyssa-milano-uses-twitter-2015-12)

Alyssa Milano Thinks Twitter Is "the Closest Thing We Have ... (https://www.businessinsider.com/alyssa-milano-piers-morgan-twitter-video-2011-3)


Jack Dorsey (https://www.imdb.com/name/nm4263038/trivia/), the founder of what was then known as Twitter, is actually the god father of Alyssa's son, Milo.