congratulations. You have more than 1/18th of a brain.
Yes, the point is that anon who posted "you know we can see you are OP" didn't know what (OP) after the post link meant, and interpreted it as meaning
"42766544 is the same person as OP".
(while in reality, in case you don't know, it just means "42766544 is responding to OP")
He thought he's burning the OP/42766544, and by claiming that you can "see (it) by settings" he sparked general interest in what setting allow you to see that information.