they are nothing awful, just a bit annoying when I noticed them. They aren't very deep and would just be considered scratches but you can feel the ridges of the scratch when you slide your fingers over it (not just surface but not halfway through the board). The bigger one is about two inches and they were just from being pressed against the side of the swim step doing tuck/getting up exercises in the water....lol....
I realize that they are nothing but it made me wonder when the outer layer is compromised, how can you tell and what can you do about it?