You just increased average developer productivity tens of times. I can already see the haters hate this new easy way to "code by copy paste", but for people who just want to use code to get things done, i.e., all 100% of coders, including the haters, this is a revolutionary boon.
This is a very cool project, and I agree that it will increase average developers' productivity. I do fear, however, for maintainability of those developers' codebases. Programming by copy/paste is bad because making a change to functionality in the future requires making the change in all the places you copy/pasted to. This tool might actually not suffer too badly from that downside, because the snippets are small enough that you wouldn't break them out into a separate function anyway.