How Connections are displayed

When you Connect your Twitter to your Discord Accounts it's pretty straight forward. It will be the same name you have on Twitter, means: Same capitals etc.
As Example: You Twitter Account Name is maybe "theIegend27" but instead of a small "L" its a big "i" but Discord will show it exactly as you wrote it. With the same capital letters.
But Twitch doesn't do that, discord will simply show your normal Username and not the "Display Name" which you can "Customize capitalization for your username". I know this is just something small for the eye but sometimes it really triggers me. If it would just show your normal how its displayed as Name it would be way better since you can click on the link for this "Website" on the Account anyway.