First, achievements. Are they not working? I'm not getting progress on any of my achievements, such as "play 500 games". How long have they not been working?
Second, please put years in the dates on the score chart. IT's very confusing to read without years.
Yes achievements are currently broken once again (they've been broken for most of the time in the last years). Can't fix it until next server restart.
Can't say anything regarding the graph. Agree on your statement though, that it doesn't make much sense.
"Nerds have a really complicated relationship with change: Change is awesome when WE'RE the ones doing it. As soon as change is coming from outside of us it becomes untrustworthy and it threatens what we think of is the familiar."
– Benno Rice