I personally  feel its common knowledge  no to reuse user name or credentials when registering something like this. Most apps or sites will even pop up saying the username has been taken — This is a comment on: https://yakihonne.com/flash-news/nevent1qqy09lk9xvazg4sdqgs2qweclppn53trs8x4s22l4se6atyhzq0wucz0hssappq8937wruqrqsqqqqqpg98dd8