it does this on different time scales too if possible.
@pegasus: funny findings after October a huge crash happend, some of us got burned, but it made us strong. then a bubble happend, those who went through darkness without fear got rewarded. it was hell of a ride and it will continue like that
I think it is mostly painting green, but during the time risto pointed it out it was painting red (thus switched in reverse). I also think it is currently painting green.
The reason why someone would use it is to play it against his own bids to camouflage his market buys and other upwards pressure during accumulation.
If it bothers you too much, just set up your own
All of this manipulation can work provided the fundamentals do not change. If the fundamentals do change watch out. Currently the bears can still focus on the 0.8.8.6 "official" binaries with over 8 GB in RAM requirements. How long this will last remains to be seen.
Call it a "gift" that that is pushing the price lower than if there was a new binary or gui etc.