I think you don't realise, the GM team generally does not deal with the punishments for these types of reports, it is left to another team, so you don't have to worry about biased handling of cases. I have had a lot of feedback that the ticket support lacked a human element, which leads to a lot of people being unsatisfied with the response, so I don't think that is an issue, but actually the issue is with other factors, such as incomplete evidence or double kill evidence where both sides are at fault.
We will not allow a 'list of cheaters' to be posted publicly, but you can still PM one of our team members or send the names in a ticket, with your evidence. A lot of the time people don't send reports and prefer to deal with these cases themselves. We cannot ban people without evidence, so if there are no reports, then it's likely no action will be taken.
If the evidence was solid, action will be taken. If you have an issue with how your case was handled, please PM a CM. Do not post your case/evidence publicly as it will be removed as per forum rules.