Unless you are a programmer, it mostly isn’t. Yet. However, if you are a programmer or if you want to send and receive secure messages, then it is kind of interesting. One interesting thing (for programmers) is that it gives you free encrypted git repos. That’s rad. Also, if you want to start sharing the repo with someone, that’s pretty easy, too. Another really neat-o thing is that you can send an encrypted message to a keybase user without having to figure out how to install PGP, how to integrate it with your email client, or how to look up your recipient’s PGP key. That’s pretty cool.
Cool. Why won’t they go bust in a year?
They won’t go bust in a year because the stuff they’re paying for is not especially expensive and they’ve got enough money on hand to pay their costs for at least ten years.
Then again, why do you care? I’m not saying you should try to invest in them, I’m just saying why the thing they offer is useful. Do you care how long Safeway is going to be in business when you think about going shopping?