No way to know how many accounts are reporting any post, and IF Trust Rating is still in effect, the TR of the users doing the reporting AND the user whose content is being reported, also affect how many reports it takes to get a post taken down.
Bottom line, don't post violations. You know your posts are often chat violations, so you aren't justified in complaining they are removed. You ARE justified in complaining that other violations don't get removed, but only if you are reporting those violations too. Just like when a group of cars is speeding down the road and a cop pulls over one and writes a ticket, the driver doesn't have the right to complain about the ticket. They broke the law, even if the other drivers that were also speeding didn't get a ticket that time.