And if you'd like a yet more comprehensive list of these "comment on scientific papers" sites, here's a community-curated list of 'em I started...there's around

And if you'd like a yet more comprehensive list of these "comment on scientific papers" sites, here's a community-curated list of 'em I started...there's around 50 listed now I think: https://docs.google.com/document/d/1HD-BEaVeDdFjjCNFkb0j3pvwe7MrP3PtE-bWHkkdq7Q/edit#heading=h.uhoilqhqulp8 https://docs.google.com/document/d/1HD-BEaVeDdFjjCNFkb0j3pvw... It's a great idea and I hope someone finds the way to make it work.