Running an association is a pretty thankless job, but who would regulate if we didn't have them. I agree with Jill, in that, bulls like Chill Factor, Cold Front, and others of similar pedigree, should be parentage tested by DNA according to the regulations. Any association I have ever dealt with is pretty stringent in sticking to regulations and this is a good thing for us all. Occasionally, a situation like this appears, and it has to be dealt with. It oftentimes is messy but it is better than just letting it go.
I believe that there have been animals in every breed that fall through the cracks and receive registration status when they are not what the breeder claims they are. Some of these are human error, some are intentional... and it has been this way since the beginning of time. It is not just a recent thing.
I remember a few years ago, a friend of mine was asked to help an older breeder catch up on some registrations. It was a large herd of over 300 cows and the old boy had two calf crops that he had not got around to getting papers on. As my friend sat down to fill out an application form, he asked the old man what the sire of the calf was, to which he replied... " What bull is the most popular right now"? He had purchased semen from a pile of bulls but had no records of what cows he had used it on.