Reddit must be down the most out of any site of a comparable. They have a post explaining why they were down for '6 hours out of the last 24' - but it's more like 12, where they allude to Amazon being partly responsible. However an employee who recently left called for them to call Amazin out for their poor service, and I agree. The downtime has been ridiculous and I don't see what they have to guard in hiding Amazon's failings.
Interesting fact: they also only have 3 staff currently.