Basically, yeah.Just got to rank 100 and it takes 2k+ exp to level? pretty sure before it was 1400. Does the experience needed jump when you hit 100?
Though to be completely accurate, the history is actually kind of the reverse. Used to be that experience needed was part of a steady increase all the way, but in one of the major updates they cut the first 100 level requirements in half, to encourage new players to level up and get more content/LP faster.
It also meant that any existing players had all that excess experience refunded back to them at once, causing them to level up multiple times the next time they hit a new rank, and getting hundreds of overflow LP at once.