How are they being a bully? It's their service. If they want to kick someone off it and develop a competitor, that's their prerogative.
This is just another example of why you shouldn't base your startup on someone else's product. If you're successful, they'll develop a competitor and use their position to push you out.
This is just another example of why you shouldn't base your startup on someone else's product. If you're successful, they'll develop a competitor and use their position to push you out.