challen if you think primes or prime chains (thats actualy stuff that primecoin is searching for) is useless.. well then you can go to the closest university from you, go to the math department, search for the dean then hit him in the face and while laughting say "you are useless same as primes and their chains"...
or you can die in a corner for bashing what you dont understand but your ego still wants to express your "very needed for community" experience
btw
http://www.youtube.com/watch?v=-fSnSFLquVU nice day plan for you to enjoy, kinda would feel you know what you talking about.
This isn't an ego thing. Value is entirely subjective.
If you genuinely believe that finding primes has ABSOLUTELY no value, then I recommend you focus on TRC mining, and that you hold all your coin.
Primecoin mining > zero value
Finding primes has a theoretical expected value. We don't know what the value is, but it's certainly there in theory.
If there was a way to feed starving children, save whales, or cure cancer via mining, I'm sure that value would exceed the value of finding primes. Conversely, mining while doing nothing of value (as is the case with most coins) is theoretically inferior to mining Primecoin.