- At the beginning it is fun and new you are a pioneer (phase discovery) - Then you understand the concept and experiments its power (fun) and you have grown a culture with your alpha wave of compadres you become a native of the place; - then it has success in a brutal fashion triggering a new massive phase of «new comers» (proportion of new might be bigger than the one of old), it is the mass immigration/colonization phase - then there is a «cultural conflict» between the old and the new regarding the way to use the tool/to be part of community. This part can last a long time and I call it the Babel tower effect.
(I vaguely map the state machine described as a chronological effect)
Every community big enough and successful will suffer it. However in the process the «native» ideas are often killed, and the original success can be lost. Plus there is never a consensus, so some people will be feeling unwelcomed.
It can be seen optimistically as stochastic improvements (the pioneers will seed somewhere else and help discover new territories), or as a process of the mass integration the pioneers back into the crowd// normalization/colonization.
Internet may have many virtues but when it comes to human beings it does not change the eternal problem of «doing something together».
Every time you take part in improving the world and try to propose a worthfull alternative, there is a chance the culture will evolve in something different then what you help to build.
My advice is to fight the tendency for bitterness and leave these communities the same way Odysseus left Nausicaa.