Open Access, but not really

Sometimes people ask me what do I have against Green OA (repositories) as opposed to Gold OA (journals) and I have a couple of stock answers to that, usually including a caveat that I do not really have anything against Green OA per se, but the way it is implemented is not good, yet makes people complacent, which in turn slows the down the progress towards complete OA. Not well implemented? Well, yes, I have seen all of these sins over the past couple of years. Once there is a standard that all builders of repositories adher to, Green OA will be OK (though there are other arguments against its current implementation still standing, i.e., the usual 6-12 month wait which is not inherent to Green OA but just a current bad practice).