As an example, when I used to work in embedded development I'd come across some weird undocumented behaviour of a peripheral in a device. Inevitably there'd be

As an example, when I used to work in embedded development I'd come across some weird undocumented behaviour of a peripheral in a device. Inevitably there'd be a post on a manufacturer-hosted forum where someone else had hit and hopefully solved the same thing. To me at the time these were very valuable, but the actual information was created by the community rather than the manufacturer. As to who would pay for it, that's a tough one - my employer wasn't willing to. I suppose it acts as a commons