Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is stupid and these girls should be ashamed of themselves for making fun of someone with a disease. Hopefully nothing like this never happens to them.
Who told you that the gif was made by those girls?