Smart developers will not just conclude that Twitter is unsafe to build on, but also any company that is operating in the Twitter model. If they are running a website, and trying to attract a lot of users, and are going in the direction of advertising, you’d be a fool to think they won’t do the same as Twitter has. They just may not be as far along. I had an interesting conversation in Amsterdam last year with the founder of SoundCloud, who asked me to use his platform for podcasting. That’s like asking a guy with a gambling addiction to put down a bet. I said no. At some point they will screw their users and developers as Twitter was already doing. I’ll pay for my own hosting and use software I can run myself.