I completely agree. When I first started I was amazed at how quickly I moved up the rankings.

I agree that the averaged values currently provided by WCG statistics are of little interest and that they should be simply replaced by averages on a shorter period.
However, if you are interested in statistics like most of us are, you should not expect that WCG will ever provide anything close to what specialised statistics sites offer. These sites will always be ahead of what WCG or the BOINC team can afford as far as development time is concerned.

And personally I like it this way:
- BOINC must make grid computing as reliable and easy to use as possible
- WCG must ensure the continuity of operations, look for new valuable projects and enable them
- and statistics sites will provide as many statistics as they can imagine.

For your own stats you can fairly easily calculate this info yourself, based on the "My Statistics History". You've also got the possibility to calculate per-computer since these stats is also available. Since you're doing the calculations yourself, it's also easy to select the period yourself.

The only problem you're likely to hit is if one or more of the days you've not got anything credited, since this gives less days with the average than for the actual period. It would have been easy to correct for these multiple days, except that unfortunately WCG uses the backward american date-formatting, and this screws-up things.

For other users on the other hand, AFAIK this info isn't available, so it's not possible to compare to someone else.

I still can't find a free lunch anywhere I've tried: the slicing and dicing of userData at the clientSide does take up some processingPower that would have gone to crunching WUs instead. Sigh..
;