I may be the only one to disagree, but I think the IRS has bigger problems to deal with - like the ones addressed by Olsen every year in her review.
This doesn't mean I support bad preparers or bad tax returns. None of us do, and I wish they weren't out there. Especially shifty-eyed Sam across town who will deduct anything or lie for his customers. But Sam would be most likely to be shut down by increased audit activity than regulation.
The problem with regulation of any industry is the enforcers pick and choose who to scrutinize. They are quick to go after low-hanging fruit to justify their jobs, but are not so anxious to tangle with difficult violators who can effectively throw up roadblocks. In other words, they could shut me down for accidentally failing to sign a return, or a failure to observe a petty regulation in Cir 1230. But a very bad preparer in a nearby town some 30 miles away has been spewing out inaccurate returns for 30 years, but is married to a Federal Judge.
Big companies support regulation and in public relations campaigns they decry bad practices in their industry. Regulators can eliminate small competitors by shutting them down, but if a regulator knocks on the door of a Fortune 500 company, they are told "Our lawyers will be in touch" and that will be the end of it.
I don't expect "like" emoticons from the group, but this is where I stand.