It would be nice if chat prefixes (like /global, /patrons etc.) could be exempt from the duplicate message spam filter. It's annoying if you make a typo in the prefix, e.g. type /patron instead of /patrons, and then having to rephrase the whole message to get it past the spam filter. In addition (although this is really minor), there should be a timeout on it. If I for example give the same answer to some questions over an hour apart with nothing typed in between, that really shouldn't get caught either (this happened a year ago though, it might be fixed by now)
I would say that to /r and /p I really hate when i accidently use /r when i want to /p and cant send the msg....