I would argue no in general.
AskUbuntu tend to have novice users that are probably not very familiar with either Ubuntu or the Terminal in the first place; they won't know how to interpret the man
page they're reading anyway, so it won't help.
This especially applies if there's many relevant man pages, or there's no indication for which section of a man page. An answer that point out that man foo
, section about bar
and quotes relevant parts of it, and quotes relevant parts of it may be a good answer. An answer that simply says man foo
is probably not.
In addition it goes kind of against the spirits of comments; If we believe the comment is helpful, it's an (bad) answer. And we don't want that in the comment section.
Teaching someone to use man
is, on the gripping hand, entirely fine. Explaining what man
is, and how it can be used to find answer to a particular question is Good(TM). But that probably involves hilighting a section, and may not be appropriate for novice users that havent ventured into a terminal yet...