Is d20 a good thing?

Part of an interview with Mark C. MacKinnon, creator of tghe Tri Stat DX and the BESM DXX systems, found here.

Marx Pyle: What do you think of d20 and the OGL? Do you think it has been a good thing for role playing games?

Mark C. MacKinnon: I think that the collective gamer mentality that goes along with the propagation of the d20 System has set role-playing back many years. I know, I know -- it's odd hearing a publisher of successful d20 products saying such a thing. I think the d20 core has far too many details and strategy-game components to it, which de-emphasises the "role-playing of a character" and encourages the "gaming of a character." I'm a role-player, and not a gamer, which is why I see it that way.

The OGL, on the other hand, is a great idea that isn't working. The problem is that nearly every game designer thinks that they can design stuff better than other people. This is why we have multiple versions of the same d20 products. Other than compilation books (complete feats, complete spells, etc.), publishers aren't using each other's open content enough in their works. In addition to creative designers, a lot of this has to do with obscure or crippled OGC declarations and inability to easily access OGC.