Posting something wrong and waiting for people to correct it to claim how you drove the conversation to an interesting place is mostly wasting everyone's time.

I'll play devil's advocate - in what way is it wasting people's time? People (myself included) find meaning in posting their opinions on platforms like HN. Why would this meaning diminish by the intent of the original message?

I would argue that although this behavior might be considered on the "trolling" spectrum, it's on the benign side of the spectrum, close to the Socratic approach.