Ah I see what you mean - individually is still fine but en mass yeah Lemmy's "instance block" is named so poorly as to effectively represent disinformation since it does nothing of the kind, instead only muting communities located on that instance but not at all blocking any of the users. PieFed can do it, of course, but Lemmy has gotten left far behind in terms of features. And continues to move forward at a glacially slow pace, it seems to me.