There is no crucial difference between inconsistency of goals caused by discounting versus inconsistency caused by boredom. You might enjoy collecting paperclips in 2011 and pay for a ticket to visit a paperclip conference in 2012; but then your future self in 2012 gets bored of paperclips and goes to visit Disneyland instead. That's humane!

I disagree. In this case, I would instrumentally value collecting paperclips, perhaps because I find it fun. What has changed is how much fun I derive from paperclips, not how much I value fun. This is not a true case of preference reversal, because I have learnt new information during the time interval; if I had known that I would stop finding paperclips fun, I would not buy the ticket and I would not mind the change, as long as I could find fun in visits to Disneyland instead. This is no different from a gambler who would change his bet if he knew more about how the future would play out.