36 hours online in 24 hours is easy enough to do if you are going to be flipping between multiple sites which keep track of your total amount of time. You just need 4 of them to do it in 9 hours. Most of that time could be spent looking through old threads and waiting for new posts.
This forum isn't really active enough to do it here, but I was a moderator at another site for a while and they had a spam problem. I was spending up to 12 hours per day several days a week deleting new threads. It would have been much easier if I could have just banned the worst of the spammers instead of having to look at so many pages of pornography and ads for prescription medications. The worst part of that was that I was at work and it could have gotten me in serious trouble if people saw what I was looking at.