Explain your idea

Minecraft usernames with two underscores or more cause a name to be formatted improperly on Discord's end. For example, "Steve_Jobs_" would become "Steve Jobs " (without the spaces inside the quotes since Github uses the correct example of formatting without backslashes and Discord doesn't) and "Steve__Jobs__" would become "SteveJ̲o̲b̲s̲" (which can't be displayed normally on GitHub without U+0332 ̲ ).

If this is platform-dependant, which platform is this about?

No response