> I named the banks I thought people would know.
But not the ones who actually held significant amounts of greek debt.
> Any guesses why France is the strongest supporter of Germany in the Troika?
French banks already lost the money. At best this might explain why they supported Germany in 2010-2012, and that's assuming that France was acting in the interests of French banks and not the French government which, as already covered, they weren't. You're suggesting an explanation which makes no sense to explain things that didn't actually happen.
> 2) The haircut was in 2012. Interest rates in the decade-long run-up leading to the crisis was 5-7%. I'll leave it as an exercise to the reader to calculate how long it takes to make up a 25% loss at those rates (hint: less than the 10-year maturity period of the bond).
First, it was a 75%+ loss, not a 25% loss. Best case, if a bank made a 10 year bond, sat on it for 9 years and 11 months, and then went through a haircut, they still lost a bunch of money.
Second, even if it had been a 25% loss (which, again, it wasn't), they still wouldn't have come out ahead; you're ignoring their opportunity cost, cost of capital, etc. You're also ignoring the fact that the people who made the loans were mostly not the people holding them when the music stopped. It's the same mistake you made when you mentioned Goldman Sachs, who made money helping Greece cook their books but didn't hold Greek debt*
Third, BNP Paribas and the other banks lost billions of euros; it did not come out ahead, or even close to it.