As a counterexample, in the event that any examples actually arise, I would give LindaLou. Linda was an atheist, or at least not a theist, and when she started bringing up ideas which were generally considered nonsense she didn't get treatment any different from creationists, we can see this since Buz and Nemesis Juggernaut were espousing exactly the same sorts of nonsense in similar, and in some cases the same, threads.
Obviously this wasn't the right kind of nonsense to be given the free atheist pass on.
TTFN,
WK
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