ekim,
I think it is more fundamental even than that. Nobody seems to have described what is being looked for. At least with unicorns, there is a rough idea. In my post 23305, in response to Alan's claim 'God has made himself known to me' I suggested 'Perhaps you could expand upon this so that others can understand the nature of the experience.' in order to give seekers a clue, but so far no response. It seems to be a case of knowers cannot tell and believers do not know.
This is true. "God" (any god) is fundamentally incoherent even conceptually, but there's a sort of unwritten contract here where some of us tacitly say, "OK, let's pretend that you and we know what it is you're talking about, now let's see whether your arguments for it hold water".
As it happens none so far at least have, but you're right: the proper response should be
ignosticism - ie, "I have no idea what your talking about (and nor it seems have you)."