The proposition of starting something like Wikipedia when it first began is volunteers working to create an infinite library, all human knowledge gathered in one place for the benefit of all.

The proposition of starting something like Wikipedia today is unpaid laborers working on a training set for AI for the sole purpose of enriching tech CEOs, a gaggle of freaks who likely don't consider you as part of the same species as them nevermind as someone deserving of rights or accolades for your efforts.

One is volunteering, the other is being taken advantage of.