but your link to that acceptability of touristic question isn't really relevant to what we're talking about here. In general, I think questions of the form "How offensive is [some term which is know to be at least potentially offensive]" are Not Constructive. Everyone has an opinion, but none of them can be "right" or "wrong".
Which I do not deny partly. I got two requests here:
Travel.SE might be a site where these type of questions may be asked (as I get to see some of the examples). So maybe this question should be migrated there. I request so because it has got 1 delete vote already here.
If I am unable to quote these terms (used in the question and marked as offensive as several users), how can I come to know usage of these terms in some cases (This question might not be the last to force me to use them)?