Looks more like a burn mark then bent/broke pins. What happened?
As for replacing, no. You'd need to get a new mobo.
Could be the Foxconn P55 CPU retention issue.
Possible. Have the RMA/warranties changed to accommodate this problem?
It is weird..I am not sure how the mark got there. I never ran the CPU hot and always put it in correctly-only time the damage could have happened was when I was installing the heat sink-I had trouble getting it in.