You could do that , but that is only you! Other people need a financial incentive to use Boinc. So by participating in the network yourself, you are giving incentive to the people that would otherwise not run Boinc at all, to actually Run Boinc. Do you see what I am getting at? Also mining secures the blockcahin and makes the network more resistant to any kind of attack, so the hashing by itself has it's uses.
I hate to say it, but everything in our current world is run by Greed. Here we can use that Greed and divert a portion of it, maybe not all of it, but a portion to something good.
Look at @ our team on the WCG
http://www.worldcommunitygrid.org/team/viewTeamInfo.do?teamId=BBNGDQS832If it wasn't for Gridcoin none of that work would have been done in the first place. Hell, I only found out about Boinc because of Gridcon. Prior to that it was not even known to me.
Even a lot of people that start using Boinc, over time they either loose interest or the everyday stresses of life just make them forget. So by adding the crypto aspect it makes it a lot more fun to participate in.
Another question. Do i have to check the box "Use GPU while computer in use" in the BOINC manager? Or does the mining module on the qt client do all the work?
You do not want to have the box for "Use GPU While Computer is in Use" checked. The way Gridcoin works is you dedicate your CPU cycles to BOINC and you mine Gridcoins with your GPU.
Gridcoin also has it's own version of cpu mining which should be re-implemented soon (hopefully). When cpu mining is brought back you will be able to fill in some information on your projects console and you will be rewarded additional GRC based on the amount of work your cpu does for BOINC.
So basically i am not dedicating any GPU power towards BOINC. Only my cpu is contributing to BOINC projects??
If that's the case then this coin is not energy efficient at all, its just forcing you to use your cpu for boinc while wasting gpu power on gridcoins, i could be dedicating gpu and cpu power to boinc instead of mining for gridcoins.