I'll give you one reason I'm against it that has NOTHING to do with "because I'm cheating". If "you've" ever received an "IRS Notice" involving any "adjustment" on their part to your tax return or request for "additional information", it more times than not turns into a 6-8 month (sometimes longer) nightmare for the taxpayer, and sometimes longer. The lag time in information sent, received, posted etc on the government's part is atrocious, not to mention trying to get in touch with someone on the phone to "discuss" anything. All the while automated notices continue to roll into your mailbox stating "Second notice" then "Intent to Levy" notices.
I JUST resolved an EIGHT MONTH ordeal with the IRS over my 1065 Tax return from.....wait for it...2019! I sent them THREE additional copies of partnership K-1's after I received the first request for "additional information" which they claim the K-1's weren't originally filed, which I know for a fact they were. The lag time in the IRS receiving my "stuff", posting it to my account, not being able to get anyone on the phone or call me back, was such that I was ONE notice away from having my "assets levied" for over $4,000 on a filing issue that I'd attempted to resolve in a timely manner. But since their internal systems are so bogged down and more than likely outdated, they couldn't in turn process my efforts to resolve the "request for additional information" in a timely manner on their end.
I can only imagine the nightmare that will ensue if these thresholds are lowered and notices to taxpayers for "income inquiries" increase by 10 fold.