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.
