[silisili]

Or reply with a short slam dunk, then delete the comment. They'll see the notification and be able to read it, but can't reply.

[caconym_]

This is how blocking works now. They changed it sometime relatively recently.

Utterly deranged.

[dmonitor]

blocking is even better because everyone else can read it too, so it just looks like the blocked person had no response to the comment and accepted “defeat”