The landed gentry are only in charge until the king comes to town and chops off a few heads. At least that seems to be the case at Reddit, where CEO Steve Huffman pretended his complaints about current moderators — who were protesting his decision to effectively cut off API access to tons of useful…
People have had no problem choosing email providers.
A few dominant servers will emerge, just like with Gmail, and there may even be an ebb and flow of what the dominant ones are (remember @aol emails?). But it seems to already be hitting the magical critical mass of adoption. Will be interesting to see if it continues