NASCAR is a privately held company owned by a single family, right? I mean...who would the source even come forward to? What proof would they have? It's not like you'll find a paper trail. At the end of the day, NASCAR is in the entertainment business. And a DV headline would have been bad. Intellectually, I get it. Doesn't mean I like it. But I'm smart enough to know why they wouldn't want him winning his 2nd race back to me. It's bad for business.
And in terms of "skirting the rules" just about every single team has, at one time, been the recipient of a "favor" from NASCAR. Plus, all of them "cheat" on a weekly basis (or at least have been busted for something). So what moral ground would ANYONE competing in NASCAR even have to stand on? The entire garage is "corrupt." And I use that word VERY loosely...because, at the end of the day, it's just a bunch of fast cars going around in circles so we can drink beer, hang out with friends, and have a good time. It's really not important in the grand scheme of things.
I understand what you are saying, but I think deep-seated corruption does matter.To me, it's far different for a team to skirt the rules than for the governing body of the sport to manipulate the outcome. I would say come out to ESPN, or a trustworthy motorsports reporter. There doesn't need to be a paper trail, just the publicity of the allegation, from someone who is thought of as a reliable source, could do wonders for the crap we are seeing on a weekly basis.