Guys (gn), I was just on Bluesky because I have an account on there for @gendercensus, and I asked a how-to question, and when I had the answer and didn't want more people telling me the same thing over and over I simply disabled replies for that post. It was so useful to be able to do that.
The ability to disable replies was requested for Mastodon SIX (6) YEARS ago. It has 565 upvotes, and it's one of the most popular on the whole issue list. Here it is: https://github.com/mastodon/mastodon/issues/8565
If you think it's a good, common-sense idea, please do head over there and log into Github and leave a 👍 at the bottom of the first post. If you feel strongly, leave a comment.
If you think it's a bad idea because people should be subject to your replies whether they like it or not as this is the open internet etc etc, please do knob off.