For some, having an instagram profile with many followers is the accomplishment.

Exactly. Some people don't have anything to say, and don't care about writing either. They just want attention, clicks/views, ad money, or followers. Others are passionate about something and want to share that passion, or just want to write for their own sake and it's just a bonus if someone else gets anything out of it.

As the internet fills with slop, it'll only get harder to find the people who actually care about what they're putting online and not just the views or the ad revenue which is a shame because those are the types of people who make the internet interesting.