I THINK that many names come from the people who come up with new ideas, and the publishing companies that print up the info. Sometimes the same idea shows up with a different name, because two people came up with the ideas in different places and went with it! I suppose some are grass roots stuff developing in an area and when enough people get excited about something, and when there are enough samples to publish, they go with it.
This is just my opinion, and my ramblings! I would suspect there are books written on this subject, but I haven't taken the time to research that. :?