Denying cheating is the biggest problem alongside the cheater problem
Go to any post with a clear cheater with a screenshot or any kind of proof and people will deny it anyway they can, for example there was one guy here recently who died to a 30kd 80% SR player with a 31 survival streak with 3k hours (doesn't matter so much since hours can be idled). After a few minutes the whole post got flooded with people creating all kinds of excuses of the suspect not cheating even though the case was clear as daylight.