Ask PG: Auto-ban commenters who repeatedly respond to replies?
They respond to most (or even all) of the people that reply to their comments, especially in a deeply nested fashion.
This commenting behavior is independent of the actual topic, so there's no need to evaluate the quality of the comment (or whatever). It's more like spam.
Now, of course, all of us reply to people who ask us questions, or for clarification, or whatever. Infrequent replies shouldn't trigger any kind of action.
But the commenters I'm talking about essentially comment spam entire threads with their replies, and it's really, really obvious who they are. I'm certain a Bayesian filter could easily detect them.
My proposal is to consider auto-banning, or otherwise slowing down these people (perhaps reducing their ability to post replies for a period of time). Their behavior is hurting the whole community.
If other HNers have any other suggestions on how to improve this aspect of HN, please let PG know in the comments. Thanks.