Terrible Discord-like idea of username plus 2-digit extension! First, 2-digits is not enough. How many Johns are out there? What's the point of having just 100

Terrible Discord-like idea of username plus 2-digit extension! First, 2-digits is not enough. How many Johns are out there? What's the point of having just 100 Johns? Either make it unique or not without hardcoding this numerical extension madness!