From D&D Wiki
 4e SRD
 220.127.116.11 01:21, 20 June 2010 (UTC)
So, why is there no 4th ed, none of the new classes, no new deities...nothing. If this is D&D Wiki why does it have nothing for the current D&D system? Specifically the Avenger class and the Raven Queen.
Publishing 4e WotC content is, for the most part, illegal. Wizards of the Coast has not released the copyright on their rules, classes, feats, or anything other than the names of things and some stat block formatting. We do, however, have a large amount of homebrew material available, which is written by our users.
 Green Dragon 16:45, 20 June 2010 (UTC)
|“||4.1 4E References. Licensee may reprint the proprietary 4E reference terms, tables, and templates (each, a “4E Reference”) described in the 4E System Reference Document as presented in the file “SRD.pdf” that is available for download at http://www.wizards.com/d20 (“SRD”), incorporated herein by reference. Licensee acknowledges that Wizards has previously defined each 4E Reference. Licensee will not define, redefine, or alter the definition of any 4E Reference in a Licensed Product. Without limiting the foregoing, Licensee may create original material that adds to the applicability of a 4E Reference, so long as this original material complies with the preceding sentence. Licensee will comply with all usage guidelines set forth in the SRD. Wizards may update or revise the SRD at any time in its sole discretion by posting the updated SRD on its website page located at http://www.wizards.com/d20. Wizards will indicate on the cover page of the SRD the date it was last updated. Licensee is responsible for checking the SRD regularly for changes, and waives any right to receive specific notice of changes.||”|
So, I guess you are wondering why not do it in any case? Personally, I don't know if there is a point. The GSL is offering the 4e SRD which (at least currently) is something akin to the 4e Index (4e Other) and our preloads.
Which do I find better?
Our preloads can be modified by us and they are defined for D&D Wiki, increasing the aesthetic value. As well their results are correct (as defined by the preloads talk and 4e in a general sense), making them not detrimental.
4e Index (4e Other) links to the book and page number and is presented in a more condensed form, making it more useful.
Ultimately, why use the GSL? Our current setup exceeds the GSL (to the best of my knowledge, please correct me if I am wrong) and we do not have to tack on extra legal jargon (such as the format coming from Wizards, etc).