"But writing about it is time consuming."

This, right here. Anything that requires research, planning, or deep knowledge, is an "unnattractive post" because the reward for that effort is too low.

There are other topics or styles of post that require much less effort and receive more reward. This is what I meant about feeling like I'm being nudged: write about this, not about that. So we all subconsciously drift toward where there is the most reward for the least effort...

("Reward", not just in zaps, but it discussion with humans.)