I've read all the replies and thanks for them.
I'll note that I understand the difference in view (there was little in the form of direct objections), but I'm not completely sold on it.
Yes, the concept of God can be hazy and vague and yes there, when you look at arguments in a vacuum, be very little attached to the concept of "God". As I noted in the OP I'm not a fan of barebone logic arguments that try to prove God.
However, outside such arguments - when people employ the term "God" they are typically not making such barebone arguments. Even basic deism, where God is essentially a non-intervening creator, argues that God is evident from nature, while revealed religion claims God is evident from scripture (and / or testimony). So the concept of God is often implied, like how if I say I'm interested in fast cars people aren't going to assume I mean tuned
Tatas. Now, one might
disagree with such claims (which I do), perhaps even argue that they are not falsifiable (they could be tautologies, for example) but that still is not "meaningless".
Furthermore, claiming that some concepts of God is "hazy" is a far cry from "meaningless". Remember that we employ hazy concepts in our everyday understanding of the world without so much as a second thought. Few people dispute the existence of consciousness, but there is (as of yet) no good empirical explanation as to a) what it is b) how pieces can feel whole c) how one individual can be fragmented from the whole. Mostly empiricists just assume such an explanation exist and continue to look for it. That doesn't make consciousness a meaningless concept.