[jen20]

> The original stance of the open source crowd was more along the lines of the GPL -> GPLv3 -> AGPL, which expressly prevents this kind of thing.

s/open source/free software/

None of those licenses prevent Amazon-style freeloading though.

[account42]

Amazon isn't freeloading anymore than users hosting the software themselves. They are providing a service and getting paid for that. This is only a problem for the original creator because they would rather get paid for the service himself but that desired vendor lock in was never something compatible with an open source license that ensures user freedom.