This is definitely <i>not</i> a failure of your immigration system.<p>They didn't even move to the US to start this, it started in the UK and then, let's be frank, they went off to the US for a jolly holiday. Now they're going to Hong Kong for a jolly holiday.<p>All props to starting a business, etc. but if you can't sell Buffer from the UK and you can't sell it from the US, you're not going to be able to sell it from Hong Kong.<p>To everyone saying the US lost a great team, they didn't need to be there. The company was setup in the UK already running, it started in 2010. Joel was standing in front of me practically a year to the day in the UK advocating bootstrapping and now he's suddenly raised $400,000 for a trivial twitter app. How on earth can you spend $400,000 on a tweet scheduler?<p>The guy's great, I think the apps great for what it is, yes they're having a great time travelling the world. I appreciate people can change their minds.<p>Also they're probably a UK company and pay UK corporation taxes, not US ones, but I'm not sure as their terms of service and their website don't explicitly say who the legal owner of the app is or their registration number or registration address (illegally I might add if they're from the UK). If he's running it as a sole trader he should explicitly say so in his terms of service.<p>EDIT: Joel's deck from Dec 2010 advocating bootstrapping:<p><a href="http://notttuesday.com/2010/12/17/joel-gascoignes-lean-startup-slide-deck/" rel="nofollow">http://notttuesday.com/2010/12/17/joel-gascoignes-lean-start...</a>