I guess it could be another fine #Snac feature, as you already can click a button to hide any post and all its present and future replies, so I believe it would not be hard to implement something like that in advance when you are posting a new activity. Then at least you could choose not to see replies...

CC: @neil@mastodon.neilzone.co.uk

I guess people who do not understand this are very lucky to live in an established law-abiding democracy where they do not even know what happens to those who do not behave as they "should".