I think what annoys me most about these threads is that they're such an easy way for people to actually post OC. Some sort of weird thing that happened to them in life.
But instead they become the same sort of circle jerk as any other "general" thread nowadays.
I actually used to ask for secrets on Omegle back in the day. It was fun to see peoples' answers. Like getting a peek into their minds, even if they were larps.