Currently users you block can still see your posts, reply to those posts, and trigger notifications when they do reply.
You can read the beginning of messages people you have blocked in your notifications tab, but have to unblock users to see the rest of what everyone else reading the replies to your post can see.
A “blocking” feature that is only inconvenient to the blocker is worse than no blocking feature at all, equivalent to trying to escape a fistfight by turning invisible but actually just closing your eyes.
If the mods/admins failed to act on your report of sexual harassment, delete the offending comment, and ban the person as appropriate, that’s the issue you should be taking up in this thread, not demanding carte blanche to silence anyone you disagree with.
I just want to keep bad actors from replying to me.
People have strange ideas about what people should be expected to put up with in here.
Why not start up your own fediverse instance and make it that way, then?