TL;DR Do not try this at home: "The IRS’s own internal watchdog found that the IRS had a practice of seizing entire bank accounts based on nothing more than a pattern of under-$10,000 cash deposits."
Well, the problem is an aggressive government more interested in taking from citizens than proving wrongdoing.
No person shall, for the purpose of evading the reporting requirements of section 5313 ...
But the report indicates that the IRS made no attempts to determine whether the supposed "structuring" was done for the purpose of evading the reporting requirements, and simply ignored any evidence the showed that the pattern of deposits had a legitimate explanation.