The rules are simple. You comment with your username,and people can tell you what they want to see you write. Or draw, orvid, or icon, whatever. Despite the name, they don't have to do itanonymously, though of course they certainly can. You then go throughthe comments and if you see that person who you've always wanted towrite a Green Arrow AU set in the Terror, where Ollie is a ScarletPimpernel-esque figure, smuggling people out of Paris, then you tellthem that they should write it.
Artists/writers/vidders areunder no obligation to actually create these things, of course. Butthose memes are always fun when they go 'round and, well, I don't knowabout you, but I have no shame left and am fully willing to call aspade a spade: TELL ME WHAT TO WRITE, PLEASE!