Instagram was launched in 2010, and since then it has become one of the leading platforms for marketing, whether marketing your business or simply just yourself. The app took off, and part of the reason people love it so much is due to the fact that you are able to see how many and which people liked your photo. It gives people a sense of self-validation that they need to get through minor inconveniences. There's a reason you can't hang out with a group of friends anymore without half of the time being spent taking photos, and the rest of the time spent editing them. Ridiculous.