My open source project was relicensed by a YC company [license updated]

"Fair enough. Since this was our first OSS project, we didn’t realize at first. We’ve now revised it. Thanks for your contribution."

We didn't notice that we copied your codebase, changed the name then pretended to have built it in four days?

Good grief.

"we are sorry we got caught"

I would be running for the hills if I were YC. This is the kind of attitude that ends up in lawsuits.

I thought tech companies were supposed to move fast and break stuff.

I think that phrase was coined in an era when the tech sector moved so fast that the prevailing law couldn't keep up. It caught up somewhat, but obviously there's still much leeway for improvement. Break all the wrong habits, rigid conventions and old traditions you want, just play along with the governing laws.

Its original intended meaning was sometimes breaking your social website, not laws.