Legion seems to be on some sort of crusade determined to make sure that when people hear the word atheist they think
This would be true. It is in fact my position: using
thought when using language. Unfortunately, you seem opposed to this practice (at least insofar as by "thought" we mean "rational/analytic/logical reasoning"). You would prefer to forego logic AND language (usage) in favor of a definition which you invent to ignore both.
I sometimes wonder what the great atheist minds like Nietzsche, Sartre, Freud, Marx, Russell, etc., would say in response to the anti-intellectual "new atheism" in which reason, logic, and evidence are thrown to the wind in favor of making "atheism" the epistemological default despite the inherently contradictory nature of any such belief.
I am trying to advocate that we use the definition "not theist" which has less negative baggage.
And you are failing to realize this applies to rocks, ideas, paper, molecules, etc. It is logically useless, pragmatically pointless, and intellectually bereft of any value. We need merely see how many other terms in
any language EVER used exist that are defined solely by being "not X", where X is some other term used in that language.
The great philosopher Calvin (not the religious not, the 6-year-old from "Calvin & Hobbes") once remarked, "if you can't go for reason, go for volume." Here, the equally inadequate and irrational approach is "if you can't go for reason, go for assumptions your define to be true by assumption and act otherwise." What's an atheist? Something that isn't a theist, but somehow also isn't infinitely many things that aren't theists and can't be equated with many non-theistic belief systems (deism, polytheism, agnosticism etc., which are defined in opposition to theism).
It seems very important to him that theists should look down on people calling themselves atheists.
It is of EXTREME importance to me that they don't, and is of ever more importance to me the there exist no possible rational reason for theists to do so.