I think that any business is going to have questionable decisions. I look at the whole of Google and I don't see the same policies and tactics that gave Microsoft such a black eye in the mid 90s, or IBM in the 70s and 80s.
The point of the thread was to let people know that a service is shutting down, and that if there is something there that you like you should make sure it gets rescued. I think they've made it pretty easy to migrate to Github, and SourceForge probably has an import process as well.
It was good for 9 years. I used it for four years. I'm sad to see it go, but things change.