I find that since you don't present a list of banned words....that every now and then a person who has been gagged before should be able to get "refreshed", as in treated like they've never been gagged. Let me explain.
I went weeks without ever purposely or accidentally swearing. I was rewarded by getting inadvertantly gagged for saying the word "Psht" which is just something one expresses to say "whatever" or "suuuuuuuuuure" I'm sure you get the picture. But having been "Warned" before and also gagged, I was instantly gagged without any second chance (I know those who have sworn before don't deserve the second chance, but for words like "psht" it's quite frustrating given that it isn't a swear or meant as one.) So I think anyone who's gone a particular amount of time without being warned a second time or even gagged.....should get a "Refresh" that way they won't get instantly gagged for accidentally saying something that might be considered inappropriate after a long time of good (if not great) behavior.
Everyone get me?