Quote from Draconic
Yes, it has. There are a lot of manga that don't have a page here until they are scanlated.
Then you could say that about both yuri and yaoi, because both world have un translated works. And if you go search right now you will see a very large amount of both yaoi and yuri un translasted but still have pages.
Quote from daebakseme
I don't think it's ridiculous, I mean, Japan's pretty big on hentai too. There's more hentai than yaoi/yuri/shounen-ai/shoujo-ai, and hentai usually has more 'yuri' going on (yaoi is usually only involved if it's shota-con lol) - plus, there's a lot of women (and female mangakas) more interested in ...
You have it reversed, there is more yaoi then yuri. So it being in hentai or not has no relevance, by your logic there would be more yuri because it's used in hentai more often. But it's still the minority.
And the shoujo-ai field is mostly dominated by female authors. The best out there, Girlfriends is written by a female author.