The longest was an SUV rant in the BBQ Pit that ran to 5+ pages. My most succesful and threadspotted was my wedding thread even though it didn’t last much longer than the announcement. But to me, the most amazing thread was my swim mobile thread. To this day my family is still awed by that. Hell I’m still awed by that!
My most successful was an IMHO “Wiping: Sit or Stand?” It was inspired by an argument my wife and I had (she couldn’t conceive of how anyone could wipe standing without getting shit on the walls. It generated a lot of technique sharing, a lot of “how the hell do you do that?”, and in the end, we all learned something.
It kept getting resurrected until finally some mean Mod locked it.