Despite being pseudonymous, I don’t take great pains to hide who I am. I am in my 50s and live on the West coast. I don’t have socials and I don’t post anywhere else. Have at it!
If you are semi-retired, you’re free from the threat of cancellation. As long as you aren’t posting about crimes, there’s limits to what anyone can legally do to you. (Still, it’s good to be prudent and limit sharing.)
Unless you're in the nebulous situation of being Hispanic in the US, in which case you might get profiled. Or you might have family with jobs that are subject to pressure -- and right now, that seems like most jobs, because calling employers spineless is an insult to worms. Or if you'd like to travel by air, because watchlists are back, and carriers may just refuse service.