Zappo said:But that doesn't matter, because the main users of a freely distributed reference document would be the designers. The aim of the OGL was to allow publishers and writers to produce supplements without paying license fees. Giving free electronic versions of the rules to gamers is just a byproduct.
You’re right, and I think this was what Ryan was referring to above. My point is that distributing new rules to designers is a means, not an end. The end has to be improving the gaming experience of actual players. If the new rules don't affect gamers, what's the point?
Assume WOTC begins to maintain a constantly changing body of rules for the game. Not just incorporating errata, but also new rules sub-systems released under the OGL. The purpose is to make available to WOTC and other companies’ designers the best of the d20 rules. What happens when a designer creates a supplement based on the latest collection of rules, as opposed to using the core books as the baseline?
We end up in a situation quite common in software design: upgrade or else. You want to use the latest version of Office? Sorry, you have to upgrade your operating system. You want to use the next iteration of a popular game? Better upgrade Direct X, your device drivers and, maybe, your entire operating system.
Imagine my frustration if I buy a series of modules only to find that they assume I’m using rules not in the core books. Do the designers reprint all the appropriate rules, in each module published, so anyone can play the module? Or do they include a blurb saying the module is NOT compatible with the core books as written, that I should first own a copy of "build 2.73" of the SRD?
Instead publishers will continue to design products around what the majority of the community have, which is the core books. So collecting the “best” new rules in one place doesn’t seem to have much benefit to the average gamer. At best, it would help companies such as Malhavoc, who design alternate rule books. But for the vast majority of published material – I just don’t see it having an effect.