There is a growing trend for new protocols to express themselves in the form of a well-known URI. It’s seen as an easy place to stash something where other interoperable software might want to probe for protocol support, as an improvement to the old ad-hoc behavior of things like robots.txt and favicon.ico and the like.I am not personally a fan of it, for a few reasons.The big one is that it means that all discovery for all uses of a protocol must be uniform across all areas on a single domain. …