[nols]

People follow pages and join groups and all that, so bots have to do that as well to blend in. It's to make the bot more legitimate.

[netsharc]

I'm not sure they're bots, rather people cheaply paid to create fake accounts, or scammers. I've seen many of them, and some of them are quite amateurish. They would say they went to Florida University and come from Florida City, working in... oil.