is just a noticeable trend: "it's okay to mock X", which of course is visible only if it's not
okay to mock Y and Z. I.e. you can't exactly bring Cyanide & Happiness
as an example of this. =)
Thus it's almost by definition limited to "someone somewhere" - just like Politically Correct History
. But the only YMMV-ness here is whether it's really a trend or cherry-picked random coincidence. It exists, did exist, and will exist, for obvious reasons. In some very wide circles there are definitely trends to posit that it's okay to mock Emo, "concerned" semiliteracy, The Amish, "Weaboos" or "Rednecks", etc. But it's definitely not the same circles, of course.
There isn't that big a difference in the performance, all Acceptable Targets
variations work the same way. So either take out all subtropes other than mentions on the main page, or don't nibble on the edges of specific subsets.