[hsitz]

Yes. Also, for a person with the requisite piano tuning/repair skills, a free piano can be a great thing. And this person can identify which free pianos are great things and which are likely to be unsalvageable. For someone who has no clue about pianos, or on how to work on pianos, not so much.

A lot of open source software is intended to be used by developers, or, in other words, by someone who knows what they're doing. Not all, of course. There's plenty of open source stuff out there targeted at end users, or at admin-types, non-developers. Much of it is excellent. (In fact, much of it "runs the internet".) Much is not, or is really in a semi-developed state where it needs to be improved by actual developers.

None of this is anything new. You need to be aware of how "ready for use" the open source project you choose is. By the very nature of how open source works, projects are available "in the wild" when they aren't really ready for general use.