One thing to realize is that the site keeps all the old games in the database. At the very minimum they would need to keep the old accounts and maybe rename them.
That said, that seems like a lot of work. Just have to come up with another name you like or add your own code, which is very easy to do if you have a name you really like. Seems like the easiest way to do it in my opinion.
This isn't the hardest choice anymore ..
But it's what online nickname you can use!
The more people who make an account here or just anywhere on the web make it impossible for any future generation to ever get that nickname. Unless you make it like blizzard did and have a special code behind the name for adding purposes and then many people can have the same nickname (with a different code behind it like Juice#1235 and Juice#6228, ...)
I got one would have loved another nickname, if that isn't obvious, but the person using my nickname hasn't logged on since 2007! 8 years ...
I'm sure others have the same issue .. Since there are so many inactive accounts!
Please chess.com find a way to remove inactive accounts (like, every person who hasn't logged in for a year at least or I don't know) so those nicknames become available again?