[nulltype]

Any examples of some successful open source dumps of proprietary projects? By dump I mean they just release the code with no docs or support.

The only one I can think of is id software, but they spent some time to clean it up I think. Also their products are games and already very popular.

[mcbits]

No examples come to mind of someone just releasing a bunch of proprietary code without some effort involved. But people sometimes poke fun at the Apache Foundation as a place for companies to wash their hands of old code that they don't want to keep maintaining, and there are some success stories there.