Looking to buy a used 2009 Fireblade, but I noticed some damage today when I went to the dealer to check out the bike.

Any thoughts on the cause of this? The clutch arm actuator pin looks like it was hammered in or something (top is dented in).

 

Welcome to the forum,
Can't say for sure, but it looks like it has been on its side at some point which bent the arm in, and whoever owned it had to operate the clutch before getting it straightened!