Plugin could log SteamIDs and if Admin mute the same SteamID, it will get longer mute. And until the and Admin could add more options like baning or kicking the player, removing some Economics money or taking back the VIP etc with console command support. Config could be like;

Mute Levels
1: mute 30m
2: 1h
3: 3h
4: 1d
5: 1w
6: ban {steam.id}