There is a valid reason for SOME of the bashing.
In SOME cases, it is done by Traders that find a good company with growth potential. They normally have one of TREE goals.
1: Shorters that want to post negative comments in order to drive the PPS down for their own profit.
2: Traders that want the price to go down, so they can buy lower, then make a quick $ as it comes back up.
3: Bashers that are getting paid to drive one stock down, in hopes a competitors stock might go up.
This is all Just my opinion.