It seems like it needs to be pointed out that GM's are there for anything you might have problems or concerns with. Preventative measures also mean little in the context of reports. Like other games, the fact there is a profanity filter does not mean you can't be reported and actioned for using those words in a public context. If someone is going to go out of their way to repeatedly open trade while you are doing anything else, they know what they are doing. I hope they enjoy their well earned vacations.