Per old upstream's https://secure.phabricator.com/T4610 ("I suspect no installs are ever interested in spiders generating an index of Diffusion.") and per current upstream's https://we.phorge.it/robots.txt including `Disallow: /diffusion/`, I propose to also disallow indexing Diffusion URLs like https://we.phorge.it/rP7868ab3754fad13714640451d664d5bc71b7a02f
Whenever we disallow robots from visiting these contents or not, Diffusion repository commits at the moment are black holes (every single line is a link). So still there is room for improvement.