This site is geared towards native speakers as well as learners.
I feel that answers for learners need to take into account the "learning" status of learners.
In this question about alternative ways to say good-bye in German, the answers included "Hau rein" and "Du mich auch", suggested by two different members.
With all due respect to the efforts of the answerers -- who phrased it neutrally by stating that they were aware of these phrases, but did not give any recommendation about a suitable situation to use them -- that is probably not what a learner of German will want to try out on the general population as a non-native speaker without being aware of the context, the real meaning and the possible consequences.
So, do we need a disclaimer for "very colloquial", "use with caution", "vulgar" or the like? Do we downvote answers that offer such terms? Can we edit out (delete) the "cruder" bits so as not to embarrass the unwitting learner eager to try out the newly acquired vocab?
This site is meant to be helpful, but sending people off to their misery does not quite sound right.