I don't think this is a 'tech bubble burst', it's more of an awakening. Big tech will continue to be invested more and more in themselves and find new ways to harvest information and profit what they can from their user base.

People want to find a place to connect, share ideas/experiences without having corporate overlords breathing down their necks. This is one of those places, and it reminds me of the '80's when BBSs were the place to go.