I am native to /tg/, and there was a screencap that made the rounds a while back that demonstrated how far off topic we tend to get.
It started with a fetish bait image, looked a bit like a cheetah/humanoid woman, and the text was suggestive, obviously trying to bait replies. Then, underneath, it said around "200 posts later" and it was an argument between anons about the mass of the sun.

I've tried scouring my files and the internet but no dice. Anyone got it?