I agree with you but in our day to day life we don't mean to do everything with an intent of contributing. I mean we do a lot of things which makes us happy as long as it does not hurt someone and I believe my post writing won't bother anyone since it's impossible to find out which ones I wrote and hence I am doing good.
As long as it doesn't hurt anyone? When I see the discussion boards rampant with nonsensical posts, do you think I want to post there? When new prospective users are looking through the forum for useful information, how many times do they have to look through posts like this?
When it comes to the volatility and the words of bear, bull related to the demand meet supply that created the volatility. Everyone love bull and hate bear but that's the cycle in the volatility when it comes to the stock or crypto market.
If I wanted to create an account I would think that the forum is full of idiots... is that far from the truth?
There are only a few sections worth visiting. That's what spam and "posting as a job" has given us.