Using the right category is absolutely not an esoteric rule. It is a rule that is implemented on every well managed forum on the internet. That's just about as esoteric as wearing clothes when you go outside.

It's not just one person, it's a huge amount of posts that hit the front page. WAY too many people write about steemit. For this site to reach mass adoption, it needs more content that isn't related to steemit, as most people don't care about the complex inner workings of this site.

The tags they can use without getting flagged are tags that relate to the post. I wouldn't tag this post with "art" because it has absolutely nothing to do with art. In a store, putting a lawnmower in with the food "to get it more exposure" is frankly stupid. Organizing things makes life easier for everyone.