A non -technological way to give negative feedback to Twitter/X is to stop using it, even "just reading an occasional post". Continuing to read things on it, even through Nitter, is in the interests of Twitter/X and of the people who continue to support Twitter/X by posting there. Tell the people who use it no. The decent people won't hear them on Twitter/X, and the decent people will wonder what's wrong with them if…
Is it because it is controlled now by a different branch of the powers that be? (different branch — same tree).