yup .. that's a normal wisdom but #nostr is more than normal :-) 

if you stopped a bot from commenting that you can prevent even a human from commenting .. 

on the client side - it is different .. relay should not stop anyone - human or bot .. but. clients can do intelligent filtering .. and let user choose what they want to see .. 

I guess nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z clarified it .. the filters have yet not made it to the  #threads screen .. which is fine ..we can wait :-)