[wpietri]

I'm sure you mean well, but "we'll figure out sustainability later" has huge negative trust value to me. That's basically what LinkedIn did and it has not worked out well for me. The incentives for eternal revenue growth are incredibly strong, and I have no reason to think you're uniquely capable of resisting them for the next 20 years. I'm am unlikely to go through all the switching cost just to help create a different hegemon.