This is why “disable inbox replies” is such a great feature that I wish Lemmy would implement. For when you still have something to add, but it looks like the conversation is going downhill, the thought of further responses is causing anxiety, and you know the right choice is going to be to let the other person have the last word anyway.
iirc block on Lemmy is “mute” and it doesn’t work like Reddit with preventing any interaction with any posts or comment threads you started (which I’m glad about, Reddit’s block imo is a horrible way of doing it).
Personally I don’t like the block feature for this for two reasons: