I think this solely depends on the tone of the comment/answer, there are different kinds of RTFM answers/comments (only made up examples because I'm too lazy to go looking for them):
RTFM
You can bet what to do with that.
RTFM: <LinkToManualAndOrSubsection>
Downvote, comment, explain why this is not really helpful.
If you would've read the Manual you'd know it. Anyway, you're looking for this <LinkToManualAndOrSubsection>.
Not worth a downvote, but not an upvote either. If you wish you can leave a comment pointing to one of the many discussions about One-Link-Only-Answers.
The manual clearly explains it in <LinkToManualAndOrSubsection>, it's easy if you follow these instructions. Basically you just have to blablablablablabla...
Awesome, upvote!
