A search of members reveals 104 pages of supermen registered! At 10 superman's per page that equals 1040 supermen !
SMD's or SuperMansmackDown's

Superman and Chuck Norris once bet on an arm wrestling match. The loser had to wear his underwear on the outside of his clothes.

1040 superman's at chess.com
All cobblers out to save the world!
Truth, justice and the American way!
Just saying

Great to see a real live superman!
1040 members with the name of superman!
I was beginning to wonder if he really existed!
All the girls? One suits me just fine!

Useful ?
One year ?
Dear chap... you're nothing special. But one on 1040 superman's here.
Go jump a tall building, stop a speeding locomotive.
I've got jokes to tell, smack downs to do.
It's my job.

Superman once wrote on the wall: "Batman is a wimp"
The next day Batman wrote:
"Superman is Clark Kent."
If superman can stop a bullet with his bare chest, why does he duck when a gun is thrown at him?