Someone made an ec-discuss version of 2048!! It's pretty awesome, although admittedly just a bunch of inside jokes. I won!
Background information on ec-discuss. It's actually a very large MIT undergraduate mailing list of the undergraduate dorm East Campus. At MIT, mailing list permissions can be set so that anyone can join the mailing list so as a result there are many non-residents and alumni still on the list.
Someone might ask about getting help on homework or borrowing hair dye. These innocuous requests might then snowball into a giant discussion or flame war. The long email chains are semi-regular occurrences that usually pick up before finals' week or other stressful times when people really want to procrastinate.
In the past few years they have tended to be more inane and jocular in nature. Some popular topics (regardless of the starting topic) are wanting to unsubscribe, Vlad the Impaler, and stud-finder finders.