I think it is because of the side effect (can it be called an externalized cost?) to developers wanting to use existing open source code and not being able to f

I think it is because of the side effect (can it be called an externalized cost?) to developers wanting to use existing open source code and not being able to find it. Google code is used by a lot of people. Whereas an early start-up with 100 users selling a product with not much lock-in can pivot without too much side effect. The users know they are dealing with a start-up and may expect it.