KU hasn't been put on probation for a program violation since 1988--the Larry Brown years. The violation--Brown paid for a plane ticket home for a recruit who had a family emergency--and disclosed the donation to the NCAA.
The other probation in 06 (before the NC in 08, btw) wasn't program related, it was boosters, and KU self-reported when they discovered it. Not very indicative of a corrupt program. And they managed to continue to win even with reduced scholarships.... This isn't "busted for cheating over and over" in my book.
Is there something specific that can be verified that you want to bring up, or just message board rumors from fanbases that are jealous of KU's ability to get recruits and then win with them?
Again, I'm not saying they're squeaky clean, because almost no program is, but there's no evidence I'm aware of that suggests a systemic corruption of the KU basketball program. There is certainly evidence of a handful of boosters that hand out envelopes at the end of the season, but that's not the program itself, and it happens a whole lot of places, included the hallowed halls of UIUC.
Ok, it is obvious now that you are just a Kansas apologist so probably nothing I say is going to change your mind.
Here is an example of the kind of thing that Kansas was never punished for but they do all the time to game the system:
Sherron Collins is a poor kid from the inner-city of Chicago and a 5-star point guard. He signs with Kansas amid rumors (articles written by journalists, not just message board rumors) that his high school coach, Anthony Longstreet, was paid to deliver him.
Longstreet, btw, in spite having great success as a coach is removed soon after by his principal for "not having the best interests of his players" in mind. (The article about his firing from 2008 is now offline.)
He was then out of coaching completely from 2008 until 2014. Here is a quote from the article about his being finally hired by Manley High School:
"Longstreet has been actively trying to get back into coaching. Controversy, rumors and criticism followed Longstreet during his career at Crane, which prevented him from getting jobs at Kenwood, Julian, Farragut, Robeson and a couple of other city programs over the past four years."
http://www.suntimeshighschoolsports.com/2014/08/06/anthony-longstreet-is-back-hired-at-manley/
Interestingly, if you look at his reported salary at Crane High School during Sherron Collins' last year, he made $50,961.
http://www.familytaxpayers.org/ftf/ftf_teacher.php?tid=62436&year=2004
The year after Collins enrolled at Kansas, Longstreet's reported salary was listed as $28,794. That is quite a coincidence that he was able to take an almost 50% pay cut at his school. Apparently he had additional income to tide him over.
http://www.familytaxpayers.org/ftf/ftf_teacher.php?tid=223824&year=2005
Now, when Collins starts at Kansas, he is given as a roommate Brady Morningstar, who just happens to be the son of a former KU basketball player and big Kansas booster, Roger Morningstar. Collins is "adopted" into the Morningstar family and they pay for him take trips back to Chicago regularly to visit his girlfriend and son, among other financial assistance.
http://www2.kusports.com/news/2010/mar/04/morningstar-reminisces/
A couple years later, the Kansas ticket scandal hits and it comes out that Roger Morningstar was getting Kansas basketball tickets and selling them on the second-hand market. He made hundreds of thousands of dollars by doing this. He was given the tickets by Kansas basketball staffers.
So basically, Roger Morningstar was given thousands of Kansas basketball tickets, which he sold for hundreds of thousands of dollars, and he then gave money to players like Sherron Collins and also AAU coaches like the Pump brothers who supplied players to Kansas.
http://www.espn.com/college-sports/news/story?id=5223151
You cannot possibly read the article I linked above with an open mind and not see the slimey-ness of the whole thing.
That is just ONE example.
The following blog touches on a lot more stuff over the years:
https://silkroadsandsiamesesmiles.com/2010/02/16/cheating-kansas-recorded-for-posterity/
Here is another post that goes into a lot of detail:
http://mgoblog.com/mgoboard/kansas-basketball-scandals-very-long-takes-time-read