If you’ve had violations in the past, Wargaming is giving you a chance to start over by wiping the slate clean for every active account. (Sorry, perma-banned accounts aren’t eligible.) After that, players will get one warning for violations before accumulating strikes and their accompanying restrictions. Then it’s five strikes and you’re out! Five strikes in any area — chat, game, or forums — can result in a permanent ban of that area. It is important to note that strikes do not roll off like previous violations. For those who have any questions about what will constitute violations, Wargaming breaks down sanctionable activity for you on the official site.
Source: Wargaming new rules violation policy; thanks to ThatLanteshGuy for the tip!