I've had some frustrating experiences. A few weeks ago when I posted something, even if other people disagreed, they would respond with the kindness of assuming that I'm speaking in good faith. More and more people are responding to my comments rather aggressively. It's mostly people with far left views, which I suppose is better than people with far right views, but it's still rather off-putting.
It's gotten bad enough that I almost expect for someone to respond to this comment negatively.
trademarks are good for 10 years and looking at some of twitters trademarks it seems the renewed them in 2019. So yes, in 2029, if X hasn't reverted to being called twitter then their trademarks will be unprotected.