I think coins that are relying on a substantially unique code base should be treated somewhat differently than coins which are just copy/paste clones. Otherwise this organization would do more to stiffle innovation than help it. As far as the copy/paste scrypt and sha clones go though there really should be a compelling reason for creating another coin at all, in addition to the other requirements listed. The whole point of currency is to be at least a somewhat universal unit for trade.
I agree. I love the intent... but this does not discourage crap coins---and may stifle innovation, as you have said. It seems that this is (inadvertantly) more about concerns for the long term mining integrity of Bitcoin directive descendants than about supporting innovation.
Mining, as we know it today, may not be the future.
As a counter-proposal I would like to suggest: create an alt-coin matrix.
Use the momentum behind this idea to create a site that details specific objective criteria, such as source code availability/location, main site, lead developers, launch date, whether or not the coin is mined, initial coin count, expected coin count, re-launch history, fork history, supported exchanges, etc...
WikiMatrix does something like this for wiki engines:
http://www.wikimatrix.org/I would love to see that for alts.