Custom in-game chat system (or not)

There might be some Vesterians who can’t really chat with others or using any emotes like me. One of main source of enjoyment in a Roblox game is chat (or voice chat for verified players), so this could make an experience more boring and less enjoyable. If Roblox allow devs to make their own chat system, it could solve one of the biggest problem. I would like to mention 3 chat type: Server chat (which only allow you chat with players in the same server), Region chat (which only allow you to chat with people in the same region like Forsaken Isle or Terul’s Maw regardless of different servers), and Global chat (which allow you to chat with any Vesterian regardless of different servers and regions). But of course, the devs would need to make sure it meets the Roblox TOS. I know some devs won’t like players have full access to any type of chat but these will create more enjoyment to players. If Roblox TOS don’t allow devs to make their own custom chat system, try adding signs which have text input to show to others. If this is forbidden too, I’d rather delete this post.