I don't see any outright insults here on the part of naktinis, at least as far as I would be insulted, but your comment was also completely unnecessary and outright wrong in the situation.
To recapitulate: The question was in a nutshell "how are these commands named, I forgot". The complete answer to this is nginx_ensite and nginx_dissite. The link Michael Hampton gave was not at all necessary but added value to the answer, and in fact his answer did exactly gave the most/only relevant part of the link, namely the name of the commands (with the name of the command, all else is at worst a quick google search away).
This policy you cite is meant for situations where people link to outside resources without additional details, like "Find how this is done in my linked blogpost" or "MS described it in this linked Technet article".
Asking for more based on your apparent misunderstanding of the question, the answer and the policy regarding links is inappropriate and removing the comment was the correct action in this situation and I would have done the same.