Uh... I'm too young for that, unfortunately. But as I get it that first they wrote the implementation(s), then - seeing it's reasonably good - documented the re

Uh... I'm too young for that, unfortunately. But as I get it that first they wrote the implementation(s), then - seeing it's reasonably good - documented the results for everyone to discuss and use. The point is, they had an idea, hacked the software (without any standards, at that point, as I understand, this was the case with IRC which had RFCed only 10 years after the birth), then willingly shared the knowledge.