My apologist, I made a small mistake in my previous post. What I meant to say is:
Don't know if this being suggested but: How about not seeing or being seen in the comments when
you're being blocked OR you're blocking this user. Also, if you're blocked by that user, can you still see his comment? And, no, I got rid of social media ages ago... So, I don't really know how those work by now.
The only real reason such a thing exists is because on social networking sites you're usually talking about your real life, the details of which can be used to take the harassment off the site and into the real world.
I don't even know WTH does that even mean.
If your greatest worry is that you might be wasting your time talking to someone... that's just how life is. People are also fully capable of ignoring your posts without blocking you. If you notice that a certain person has a tendency to not reply to you, just give up on it.
That's not my concern, at all. It's the other way around actually...
Some idiot virtual-signaled me so effin' bright that almost blinded me in some comment about a
MC in the manga. Guess he got too into the character. ¯\_(ツ)_/¯