They have at least 3 factors for what floats to the top and that just leads to a harder to understand system. It's just a crappy forum structure really, and it's the new normal because it's enjoyable for people to get on a discussion board and not actually discuss anything. Twitter and reddit being the biggest offenders in popularizing this, and reinforcing bad practice. Hardly a conspiracy, don't give them more credit than deserved. It's just a terrible forum like most others.