It happens fairly often. Someone brings a proposal to a technical standards body like the IETF and expects that just because it becomes an RFC, people will adopt it. Or they’ll come across a requirement in an RFC and expect it to be enforced, perhaps with some kind of punishment. Or they’ll get angry that people don’t pay attention to an existing standard and do their own thing. This is so common that there’s a ready response widely used by IETF people in these situations: