Relevant post: https://status451.com/2016/01/06/splain-it-to-me/

There are two common social perspectives: information sharing vs emotional harmony. From one perspective, the other seems rude or insane. If your message is corrected or added to, this is a chance to be less wrong. But it is also a chance to be embarrassed and seen as less knowledgeable than you seemed.

Status seekers tend to assume the latter perspective, and therefor label such comments as rude, dismissive, conflict-seeking, etc. even if the OP had no such intention.

This is also 95% of what "help i'm being harassed online" comes down to.