Also, while other locations in the Fediverse might disable access to unauthenticated persons, comments and post in Lemmy are generally public in that way. So, a blocked user could simply logout (or visit from a different instance) to see the content.

Also, as a third-party I do want someone (e.g. a fact checker) to be able reply to a comment with more information, so that I can see it, even if the commenter doesn’t want to see replies (from the “woke mob” or wikipedians, e.g.).

I understand some people think the reply thread under their comments is somehow “owned” and should be “controlled” by them, but I don’t agree. I think this should also be true in most places on the Fediverse, tho it isn’t (as I understand it) on Mastodon (and the like).

Perhaps some people want others reading what they post online but don’t want to be bullied.

This sounds like the words of an abuser.