We, myself included, just closed this question about SheepIt because it's off topic, but I think that was a mistake. Before I propose reopening, I want to discuss why I think it should be, to see what the sense of the community is.
The problem with Sheepit, is that we have a tag for it, and there are existing answered questions that weren't closed as out of bounds. For that reason, I think it fits the rules about being on topic.
If it's off topic, then how should we deal with the existing questions? If they're on topic, than shouldn't this one also be?