Thanks for the response. You raise an excellent point on the interdisciplinary nature of a lot of modern projects, and how ethical issues can often be ignored. While I don't doubt the team is using some kind of heuristic to ignore spam and the like, it still pays off to examine the methodology used because for example upvotes could still capture unwanted data. I guess we'll just have to see and hope that the resources went to good use, rather than to create something only for entertaining a specific portion of the population in a limited way.