Oddly enough that's an average of 10 points per comment.
Also I can't see total up votes in Sync, or I haven't figured out where that is, so I don't know if the total karma is correct, but I can see they've only made 27 comments in 4 months.
Are you sure boost calculates it correctly? I remember some
llemming trying to do it earlier but said it wasn't federated correctly since total karma has been a non-goal for devs.