I am giving my opinion on a random forum, not writing a study about mindfulness. I didn't even say anything controversial, a glance at the wikipedia page would list a bunch of criticism.
https://en.wikipedia.org/wiki/Mindfulness#Concerns_and_criti...
> Is there a forum like Hacker News, but with no "talking out of your ass"? > How could the mechanics of a forum be set up to achieve this?
For example, you could try not to be an asshole and not to "talk out of your ass". Be a change you want to see.
Btw, in your case, a mindfulness practice could actually help. Instead of pretending to be an angry internet gestapo, you can try some basic breathing practices for a few minutes.