There are thousands, perhaps tens of thousands, of influencers making a living this way. Some make a lot more than a living. The most successful demand $10,000 and up for a single Instagram shot. Long-term endorsement deals with well-known Instagrammers, such as Kristina Bazan, who signed with L’Oréal last year, can be worth $1 million or more. Big retailers use influencers, as do fashion brands, food and beverage companies, and media conglomerates. Condé Nast, publisher of the New Yorker and Vogue, recently announced that it would ask IBM’s artificial intelligence service, Watson, to take a break from finding cancer treatments to identify potential influencers. ... The ultimate goal: to persuade someone, somewhere, to pay me cash money for my influence. ... “You sell part of your soul. Because no matter what beautiful moment you enjoy in your life, you’re going to want to take a photo and share it. Distinguishing between when is it my life and when am I creating content is a really big burden.” ... Instagram doesn’t explicitly ban bots, but its terms of service do prohibit sending spam, which, when viewed in a certain light, is exactly what I was doing. On the other hand, except for a single user who somehow had me pegged and accused me of being a bot, nobody with whom I interacted seemed to mind the extra likes or comments. ... I was already verging into “micro-influencer” territory, a hot new field within influencer marketing where, rather than hiring one or two big-time influencers, an ad agency will simply give out free merchandise to 50 small-timers.