What they should do is implement a specific quest completion that allows you to use chat. Example you cant chat in area on NGS until you complete magnus or labs. Bot users won't put that much effort into the game and if they do kudos for them actually playing the game lol. As for how standard it should be every character created not by account. This would avoid vpns or multi character bots on the same account.
Its understandable that this would honk off players themselves but if you have an alliance or group you have those chats.