I had not heard of PubPeer, but it seems like a good concept.
There has been a worry in academia about the future of peer review with the advent of open-access journal publishing. The concern is that online open-access peer review may not be as good as traditional peer review.
But PubPeer, while not the journal's own review process, seems to show that online reviewing can be good at spotting errors.
PubPeer offer
browser extensions for Firefox, Chrome and Safari that will automatically insert PubPeer comments on any paper you read on PubMed.
I counted around 80 different ME/CFS studies on PubPeer, when searching under "
chronic fatigue syndrome".