Our discord roles are based off Roblox creations and abilities. As a bot developer is only related to discord, we will not add the role unless Headless decides otherwise.
While I'm not saying we won't ever add the role to the discord, as it currently stands there isn't a big enough population in Roblox that would have us consider making them stand out in our discord. We choose roles that are popular and common within the Roblox development community. Now in the future, if it ever becomes more and more prominent where a lot more writers are coming out then we will consider making them have their own separate role in our discord.
As it currently stands (and other people have stated), our criteria for the role 'Game Maker' makes it applicable to game creators. It just basically a different name and term for them. Sub-category