If I remember correctly in summer last year (or at least some long time ago) deviation was increased. (so that now players end up at a deviation of 65 instead of 45) That was done with the intend to make it easier for old players who returned after a long break to be able to loose rating quickly and get balanced games faster.
As far as I can remember there have not been many players coming back after deviation was increased, so I would say the change was in that regard rather pointless.
A negative side effect of this is (imo) that rating fluctuates stronger, so it is easy to loose 100 points and more on a bad day (which can be frustrating) or win 100 points and more on a good day (which can cause stop players playing (at least for some time) because they don't want to loose their pretty 2200 rating).
Apart from those extremes high fluctuation makes rating less reliable and harder to judge how good your opponent is at the moment (since he might easily be over/under-rated by 100-200 points relative to your own rating)
So I think I would prefer returning to a lower deviation again.
(does this actually belong here or into general discussion?)