I think you might be missing fogus's point to a certain degree. His point is that active, public development for a language might not necessarily mean that the

I think you might be missing fogus's point to a certain degree. His point is that active, public development for a language might not necessarily mean that the language designer is keeping contact every day. You might only receive periodic updates. I don't see cookies being all that different from Arc in that respect. Cookies doesn't have to be useful anytime soon either because, well, it is useful already.