>>roflye+(OP)
The adult behaviour I'd specified was "the ability and inclination to research for yourself what you might have done wrong". I fail to see at all how this would exclude anyone who might otherwise be capable of productively engaging with HN.
If you don't mind a late addition, it's also responding to comments as written, and not as one would prefer for them to have been written, as you're raising an objection not grounded in what I'd said.