Protocols should become useless before dropping the client from standard distributions. This statement is identical to "All operating-system developers must su

Protocols should become useless before dropping the client from standard distributions. This statement is identical to "All operating-system developers must support every protocol ever developed, until the heat death of the universe". I am not exaggerating. No matter the protocol, no matter how obscure it is, somewhere there is at least one person whose workflow is dependent on it and who will complain that it is, as a result, not "useless" and must be supported out-of-the-box by their operating system. Those people can learn to install a client. If any of them happen to be the only user in the world of a given protocol and be doing it solely on machines to which they have no write access, well, they painted themselves into the corner and now can deal with the consequences of it.