I do not recommend using mixin 0 unless you are an expert and prepared to handle the delays/issues (mixin 1 should probably not be used at all).
It looks like many people have problems withdrawing Aeon from HitBTC, and of course they don't have any choice in the mixin number, as it is up to HitBTC... Btw, if mixin 1 is not to be used, should it perhaps be disabled?