How do I make these chat tags work?

So, I'm trying to make developers have chat tags for my game, but for some unknown reason, it only gives the chat tag to FuddziezYT. Please someone help me with the script. Roblox studio shows that there is no errors but it only gives tags to one person still.I'm pretty bad at scripting so I need help to solve the issue. Here's the script :

game.Players.PlayerAdded:connect(function(plr)
	local tags = Instance.new("Folder",plr)
	tags.Name = "Tags"
	if plr.Name == "FuddziezYT" then
		local newTag = Instance.new("IntValue",tags)
		newTag.Name = "CREATOR"
		local chatColor = Instance.new("Color3Value",newTag)
		chatColor.Name = "ChatColor"
		chatColor.Value = BrickColor.new("Really red").Color
		local tagColor = Instance.new("Color3Value",newTag)
		tagColor.Name = "TagColor"
		tagColor.Value = BrickColor.new("New Yeller").Color
		
	if plr.Name == "Trollicus_Dev" then
		local newTag = Instance.new("IntValue",tags)
		newTag.Name = "CREATOR"
		local chatColor = Instance.new("Color3Value",newTag)
			chatColor.Name = "ChatColor"
			chatColor.Value = BrickColor.new("Really red").Color
			local tagColor = Instance.new("Color3Value",newTag)
			tagColor.Name = "TagColor"
			tagColor.Value = BrickColor.new("New Yeller").Color
				
	if plr.Name == "DominusLegendary" then
		local newTag = Instance.new("IntValue",tags)
		newTag.Name = "DEV"
		local chatColor = Instance.new("Color3Value",newTag)
		chatColor.Name = "ChatColor"
		chatColor.Value = BrickColor.new("Really red").Color
		local tagColor = Instance.new("Color3Value",newTag)
		tagColor.Name = "TagColor"
		tagColor.Value = BrickColor.new("New Yeller").Color
			
	if plr.Name == "david_mcpguy" then
		local newTag = Instance.new("IntValue",tags)
		newTag.Name = "DEV"
		local chatColor = Instance.new("Color3Value",newTag)
		chatColor.Name = "ChatColor"
		chatColor.Value = BrickColor.new("Really red").Color
		local tagColor = Instance.new("Color3Value",newTag)
		tagColor.Name = "TagColor"
		tagColor.Value = BrickColor.new("New Yeller").Color
				
		end
			
		end
				
		end
	end
end)