Ahhh the straw man argument, @WhatToDoAboutWailmerGoneRogue - nice try.
Of course any rational person could see that I wasn't suggesting that people stop doing anything that might upset someone else - just that they stop doing this thing that clearly does upset some people.
To turn your argument around - living indoors, buying food, having babies all have the potential to upset people, but we can't stop doing them - so we shouldn't stop doing anything that might upset someone. So mocking people for their weight, ethnicity, sexuality, social status - these are all fine, because trying not to upset people is "...a load of bollocks..."
If we all stopped having children, so that people who can't have children don't get upset, the human race will die out - probably not a good thing.
If people stop taking sneaky, candid pictures of other people, and posting them online, to gossip about them (possibly maliciously), what bad outcome could there be? None that I can see.
If someone took a picture of someone you love, who had suffered an embarrassing wardrobe malfunction, and posted it online with a nasty, mocking meme - are you saying you would be 100% OK with that? Really?