I would not jump to conclusions that the coin is useless. We would not accept it for payment if we were not going to build further value into it. 
Can you please give a link with the information about limited 24 hrs period about cache 0.01 accept rate? Why there was no info in the OP?
It looks like it was not there on purpose. I think a lot of investors\miners lost 50-100-150% of btc value because of their investments in cache due to that smart trick.
The price was stable for almost 1 month because of your promise to accept cache at 0.01 rate and after the cache price for asics was increased significantly, the market value dropped 2-3 times (please don't tell wierd stories about "bot" that crashed the price using maret manipulations). The whole story looks really shady to me right now.
I could explain it to you but honestly, why spoon feed? If you can't think and see relations for yourself maybe loosing your money will teach you a better than i will ever be able to.
I am sick off everyone who doesn't even care to read and then complains about things that were widely available and known, investing "alot" into something doesn't come with special care, use your brain!