I like to see a comprehensive debate about the invisible pink unicorn, because some people may believe in one. Then we should move on to Bigfoot, and the teapot that is said to orbit Jupiter. These are all reasonable debates because each of those things, and millions of other similar things have been posited by actual people. In the process of doing all this, the forum should be renamed "Redefining Skepticism to Make it More Usable for the Mentally Challanged." After all, if you're going to be a true skeptic, you must be skeptical enough about skepticism to get rid of it when it no longer suits everyone's agenda.
Regardings unicorns, etc, this is what I have to say:
It is certainly perfectly possible to criticize Agnosticism, but not by means of probabilities, and much less by the bizarre way of ridiculous comparisons that, surprisingly, not only Dawkins but many other atheists use frequently, which is to equate belief in God with weird beliefs like unicorns, pink elephants or chupacabras, claiming that as it is not possible to prove their non-existence, we should then be agnostic about them as well.
It could be, but this argument is simply stupid for ignoring at least two obvious interconnected things:
1 - That belief in God, due to its intrinsic characteristic, is metaphysical and infinitely extensible, different from other specific entities that can be claimed;
2 - And that Agnosticism is not based on the simple fact that it is not possible to prove that God does not exist, but mainly on the fact that IT IS ALSO IMPOSSIBLE TO PROVE THAT HE EXISTS, which certainly does not apply to other specific beings.