Originally posted by Russ
Rating graphs are currently showing incorrectly ordered data. This will be fixed as soon as possible.
[I just posted this in site announcements too]
Basically, there is an issue with the dates that games were rated. They are now ordered by game id (causing the spikes), but the missing dates will be restored ASAP.
I see also another problem on the personal profile page.
The value of the current rating is always the same as the highest rating.
Could be that the problem is related.