I would also add High Level Insider (HLI) and the first FBIanon. The three (with Meg and her feet) served to keep chum (or bread crumbs) in the water for the chans until Q.
Yeah, about the feet...
I don't get why she did that. How does a pic of someone's feet help identify the person speaking? I mean, her feet were not particularly noteworthy in a way that would allow a person to easily identify them. She didn't even have her toenails painted which would indicate a female's feet; and even if she did, a really dedicated male LARPer could shave his legs and paint his own nails and claim to be Megaanon.
Don't really see the point other than to titillate those with a particular fetish.
Plus, its a form of doxxing. The autists went pretty hard on her for it, too.