Username Change

This isn't really a bug but more of a suggestion but I looked everywhere and couldn't find any suggestion areas. I have an idea for the username change. So that everyone doesn't change their username every 5 minutes you should make name changes only able to be used every week or month for people. Say, I changed my username from Andrew_2_9 to CheatSource (I put CheatSource for my Jira account but on Minecraft my username is Andrew_2_9) then I can't change it for another month (or week). There should also be a default command in Minecraft servers like /playerid that all players can use by default which allows them to see their unique ID. Look at the way NitoType.com did their username change. Try doing it like that. I hope you found this useful. I make my reports and suggestions really long and I'm sorry if it took a while to read.