Since the rules aren't specific on what happens when a team is subbed for, I've chosen to go with extremely lenient.
Well, when we were subbed for, we lost 5% of our points every game, moving us from 1000 points to 858. Wouldn't this be the precedent? That was a situation where we a team asked for a break and a sub WAS found. I'm looking at rule 18.b:
"If no substitute team can be arranged, the matches will count as a loss. No points will be deducted from the ally team and only 5% points will be deducted from the team on break"
It seems like in our case you treated this rule as what happens to a team on break
regardless of whether or not a sub is found. I realize that's not quite how the rule reads, but that's what the precedent is. I don't believe GSR should be awarded points for not playing and I believe there should be a 5% penalty (as was applied to us) to discourage teams from taking a break.
As to your second point, I believe in that same case you let the winning teams still keep their points, so I would let SkBo keep their winnings from the week. It doesn't seem necessary to nullify the match. Give points to SkBo and deduct points from the losing teams as normal and track the points that the sub team got. If they ever enter the tournament they can enter with their current score based on their winnings this weekend. Again, I believe this is what you did in week 1.
To your third point, we should not award Kajiggrs points. Rule 16:
"If a team is a no-show, the match will count as a loss for their pair. All points lost will come from the team that did not show (20%). The winning pair will receive points as if they had won 10% from each team."
In one of the weeks we had No Hug Me I'm Scared not show and I don't believe their partner team was awarded any points. When we didn't play 6th week because NHMIS dropped out, we weren't awarded any points. I believe the precedent would be to keep Kajiggrs at the score with which they entered week 7.
TL;DR
1) GSR should lose 5% of their week 7 score per game
2) The matches should not be nullified and SkBo and all other involved teams should have their scores adjusted accordingly
3) Kajiggrs score should not change.
I hope none of these teams take any of these statements personally. I promise that everything here was said in a spirit of openness and fairness and I certainly don't mean to offend.
-Cunning