I say this with all possible respect, reverence even, for what Tarn Adams has accomplished and what continues to work on, but there may be no worse messenger for the problem of disintermediating game designers and creators from actual code authorship than the author of Dwarf Fortress. It's an amazing game that succeeds in spite of and not because of its code. Had Adams been able to use Opus or Sol when he started with DF, that game would be a broad cultural milestone today, and not just a nerd affectation.