Reply number four just to test
Reply number five just to test
Reply number five just to test
Ha. Just kidding, it’s nr 7
Reply number six just to test 
Replying to whole topic, maybe replying to individual posts triggers another behaviour.
The only other option would be that it is indeed tied to trust level
Reply to Robin #1
Reply to Robin #2
Reply to Robin #3
Clearly they have a wording issue there. 