They're probably very immature kids, probably 11 to 13 and they've never experienced anything difficult in their lives, so they think this stuff is a joke. I notice a lot of young people are very selfish, and if it didn't happen to them personally it's like it never happened. I hope they grow up and fast so they stop posting such idiotic and hurtful garbage.
If they're adults posting this then shame on them even more, G-d will not be pleased with their hateful attitudes.