A trollish and aggressive board would be 4chan, Something Awful, Fucked Company, or Twitter. Phoronix strikes seems to be a niche board with strong opinions; basically the same as any BBS I used to visit. Calling it tribalism and accusatory, based on the thread related to this topic, is pearl clutching.
The negative comments I saw in the thread are of the style below.
> That also tells us that AMD has not bothered to fix this for 20 years. On the other hand, I welcome their stepped-up efforts to improve the Linux experience for their end-users. There are still some areas where more participating could yield some benefits though, e.g. glibc or better upstream compiler support/tuning.
and
> It seems Linux competition is so slow AMD didn't even notice such suboptimal performance.
Unsettled? This is milquetoast criticism at best.
Link to the forum below in case I missed something. I've never visited the forum before and am not deeply involved in Linux, other than happily using it for my home computer.
On the other side, I'm always sad / unsettled to see the comments on Phoronix articles like this, the tribalism, the accusations, etc.