Reflecting on my first year running solely Linux (as opposed to dual-booting), I think that this culture comes from the fact that, on Linux, problems can more often than not be solved. If not solved, then at least understood. When you want to change something on Windows, or something breaks, you have far less room to maneuver.

When I was a Windows user, I'd barely ever submitted a bug report for anything, in spite of being very tech-literate. It felt hopeless, as my entire experience with the OS was that if a fix would come, it'd have to be done by someone else.

Linux treating its users like adults, produces users who are more confident and more willing to contribute.