Because others have asked, and I've already expressed this idea before. If you want a positive definition of the OSR, and what it's all about, here it is:
I would classify the OSR as a design philosophy of creating systems, settings and adventures that fit within the boundaries of old-school mechanics and concepts; that is, either directly utilizing features that were in existence in the period before the advent of 2nd edition AD&D; or features that, in spite of not having historically existed at that time, could have existed in that period without the addition of material or design concepts that are clearly the product of subsequent ideas or later theories.
That's it. That's what OSR design is.
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