He asked a question in the form of a comment – I'm pretty sure that's what 'comment' is referring to in the guidelines; not the content of the comment itself.

He asked a question in the form of a comment – I'm pretty sure that's what 'comment' is referring to in the guidelines; not the content of the comment itself. And you seem to be wrong about by comment about the guidelines. The other user was informed or reminded about the guidelines and we even had a nice little 'comment chat' about them. Any kind of online forum inevitably requires participants to remind each other of the rules as it's the principal means of enforcing them.