Tbh, the biggest problems I had with the Omegle thread was that A) the discussion--as meager as it was--wasn't very intelligent, and B) it was merely a showcase for how well members of TLS could troll random people. In that sense, perhaps it was as much of a troll thread than a spam thread, and we're mixing our definitions since they occassionally do bleed into one another.
Regardless of that confusion, would leaving a thread like that open reflect well on the site and the community? I don't think so, and therefore I agree with its closing. Quexinos even indicated in the opening post that she probably didn't expect it to stay open long, and I felt the same way. We had our fun, and so now if people want to swap lulzy Omegle convos they can easily find some other means.
But let's reexamine this definition:
Do we need to also state that threads that start off without promoting intelligent discussion are prohibited as well? Now that I think about it, that seems kind of obvious, but perhaps we need to put that in. And maybe say, "With a few exceptions" to include stuff like the Listening thread? Hell I dunno.