I was... testing... to see if the cost of purchasing leveled skill will flip over to negative values, and if that will allow one to purchase absurd levels of skills for negative cost.
It turns out it DOES flip over around the point where you are trying to buy 2000 levels in each skill. At that point, the cost changes from very high and red, to very negative and white.
however, the problem I was expecting- that one would be able to simply buy this- is not present. Clicking buy does nothing.I experimented a little, but it looks sound.
However, I wasn't able to see what happened when you attempted to buy a negative number of skills with a negative number of LP. Anyone want to try that with some of Loki's Honey?