Once is an eye roll or accepting that someone's not having a good day. Ten times is a tactic. If you can't see how playing with words like that is unnecessary and counterproductive on a discussion board I can make it clearer.
It's the "I'm a horrible mother" card, he makes some stupid dramatic declaration about himself or the topic at hand and then insists everyone just move on. Any further attempt to actually address the content and engage with it in earnest is now "piling on" and all you get is a flat response in which nothing else is volunteered. There aren't really a lot of ways to engage with that besides coddling someone you disagree with or dropping the entire discussion, which again, is counter to the whole reason we come here.
I've been here long enough to appreciate both sides of tex's thing, spent years agreeing with them. This is a new behavior and it's genuinely exhausting. If it were a gimmick poster I wouldn't care but it's not. It's like watching your parents do things they raised you to be above, it sucks worse to watch it and it's harder to just ignore.