As long as we measure the success of a movement by adoption numbers, any successful movement will eventually become compromised and diluted. This is a cycle that has repeated itself time and again. It happens in all areas of human interaction: politics, religion, science, entertainment, business, and technology, to name a few.
When this cycle occurs, the founders and early adopters often begin to feel bitter about where things have gone. They long for the “early days.” They begin to lash out at the masses that have morphed their creation into something less than what they had in mind. They may even make a concerted effort to reform the movement, and to bring it back to its roots. This is understandable, but it is not practical. I cannot think of a single instance where it has worked.
I've been thinking of a more sane and peaceful path: Founders and early members of a movement could, at the first sign of success, begin to plan their next move. Learn from what has been done before. Keep the essence of it, and start over. If the original idea was good, reuse and rebrand it. If those unwashed masses did bring a little value after all, borrow it and build on it. Or scrap the whole mess and reinvent the wheel. (Round does get boring after a while. :) )
Just be willing to let go of what was, and let those who have come run with it. Don't whine about it. Don't attack the newcomers. Just move on. If you miss the “good old days,” you can always start some new ones.