If you still have a Twitter account and don't want it suspended, please read this policy about posting links to alternative platforms like Mastodon.

I am 100% sure this isn't a bluff.

https://help.twitter.com/en/rules-and-policies/social-platforms-policy

Promotion of Alternative Social Platforms Policy | Twitter Help

@RedTRaccoon
I noticed when I wrote “Masto” on Space Karen’s site, the letters turned red as I wrote them. I wonder if I can get away with:
@RedTRaccoon Most definitely not a bluff from one of the world’s most fragile egos. Interesting how they list some sites and not others. What’s the criteria? I don’t see YouTube on his list. 🧐 “Twitter will no longer allow free promotion of *specific* social media platforms on Twitter.“
@RedTRaccoon I said goodbye Permanently yesterday. It's now a platform I do not want to be a part of or promote.