Yeah I get where you're coming from, but 'rewards' can often be worthless, e.g. I get texted a to collect "rewards" for topping up my phone but I don't even bother because they're crappy worthless rewards. At least with when the term "money" or "get paid" is used you know it has value. Maybe talking about it in terms of rewards is better I'm not sure, but I would think unless there's a legal reason preventing us from talking about Curecoins like they are money then calling it money would be more effective.
A big reason why I waited so long to get into Bitcoins (and I'm NOT the only person, as tons of others had the same issue) is because sites referred to it as mining for cash. This is a huge red flag for a scam, and made a lot of us avoid it. I had heard about it back in 2009, but because of the scam aspect I stayed away. I didn't get involved until the middle-late 2013 as a result.
You have to consider how the outside is going to interpret it. Most things that allow you to use your PC to passively earn cash are scams. We learned that long ago.
Fair enough. I'd go for your suggestion then: "Get rewarded for helping cure disease with your computer!"
Would it make more sense to have that as the sub-heading, perhaps? I sort of like the tagline, then instead of "CureCoin is a CryptoCurrency based on coupling SHA-256 Mining and Folding@Home Protein Folding" which is a bit dry I could do "Earn rewards for helping cure diseases with your computer!" or something along those lines?
In all honesty even though its clever and possibly true to say that Curecoin is the cure for the common cryptocurrency, newcomers wont even know what a cryptocurrency is so it immediately raises a question, without telling them anything about Curecoin, other than that it might theoretically help get rid of some other cryptocurrencies, which isn't what Curecoin is about anyway (thought it may be a positive side effect). Even though it has a nice ring to it with the alliteration, I don't really think it belongs there at all.
We've got 1 short sentence to grab people's attention and tell them what Curecoin is all about.
I'd go with:
Help cure diseases with your PC and earn rewards.
Or if that's too long then:
Help cure diseases with your PC, earn rewards.
Then I'd leave the more technical second line as it is. That way the simple + technical sides are explained.