How do you know I don't try to avoid audits because of personal illegal activities? But you didn't jump right to that because it is perfectly reasonable that I prefer not to deal with an IRS audit.
Consciousness of guilt applies when that is the most likely explanation. Otherwise, it can only be used when there is enough additional evidence to make it be a reasonable explanation.
Within the conservative crowd, keeping the gub'mint's nose out of your business is always going to be the most likely explanation. I certainly accept that from Rush without proof to the contrary.
And if he were really trying to avoid rousing suspicion to truly illegal activity, I think Rush is smarter than to withdraw $9,900 regularly from a single bank account. It would make more sense to make $1000 withdrawls from several accounts.
If he really is your hero, and not yet fallen, then wait for the rest of the story.
Shalom.