I believe it would be hard to find a site showing weekly profit. the variance is simply too great.
If MP shows a bad week, then people will start leaving. Two bad weeks, and the movement will probably more than double. I think it's dangerous to show 1-2-3 weeks.
I would agree there should be more stats other than simply a lifetime profit though.
Just-Dice.com publishes daily profits. Sometimes they're positive and sometimes they're negative.
Anyone investing in a dice site ought to understand that there is a lot of variance. If showing them the facts stops them investing then good - we don't want investors who don't understand what they are investing in.
See
https://just-dice.com/misc/wagered.txt for a day-by-day list of the site profits, and
https://just-dice.com/images/all_time_profit.png for a chart of the site profit over time. It goes up and down, much as expected.
I think they were wanting personal stats. MP also has public daily profit counters and a chart:
