When the community gives nothing back, why would you release anything to the public?

What would it achieve, by releasing a MoP sandbox? Suddenly a few hundred random people are downloading it without even saying thanks. A few do say thanks, but those are the few. You have many complaining of a lack of features even though it is only a sandbox, and moaning at the original poster. And then al these people downloading it - what are they going to give back? Are they going to implement new stuff to it? I think not. Are they going to post it on every other site in a hope for reputation? I think so.

So why would anyone wish to go through that? Have their work stolen, people claim it is theirs, and nothing improved upon it, and for what?