You don't even need to pick somebody popular, although I suppose it might make certain things easier. If you pick a plausible name and an attractive-looking profile picture, after a few hundred requests to people in the same location, you will have plenty of followers. Perhaps bootstrap with relationships amongst your bots so your profile doesn't look conspicuously vacant. It's not only spammers that do this... guess what, law enforcement does it too. Social networks have not changed how gullible the average internet user is.
