Why its called "open alpha" if it is closed alpha testing?? thats not an open alpha.
Again +1 for "Harvesting", as this word is easy to explain to outsiders and people unclear about the workings of Cryptoscurrencies.
An unique name ist not better for SEO IMHO. Mots important is that new users understand the concepts. Thats exactly the problem with bitcoin right now, its to complicated for most people. Adoption comes from simplicity, so we should always focus on this. See apple why its successful? because you don't need a manual to use it.