Because of the flags that people self-entitled as the holders of the ultimate quality criteria will smash on small redfishes and minnows how dare to spam the blockchain with such a low quality content lol.

The other reason, core devs getting hundreds from the rewards pool for tech posts and some others getting thousands from the development fund... The off chain whispers is that only tech stuff, GitHub repositories and other simar stuff is rewarded...

I mean Trump gives away tons of posible viral content every second he speaks. So could get hundreds of thousands engaging around politics, the virus issue, some sexy girl/guy around the media, the spoilers of the trending series, the possibilities are endless! But still, many (with lots of HP) are still trapped in the old mentality