>>283185983
Those things always existed, only the internet can bring them out into the public. It's not like footfags had anywhere to post about feet before the internet, but the clues were there in the movies they directed.
>>283185983
it was popular when Dagashi Kashi (the manga) existed, so in 2014+
and it exists because it's cute, also not everyone who likes pits is a smellfag.
>>283185983
Pits vs feet was always the ascended tits vs ass. Pitservice is just a little less noticeable than feetservice until your neurons are calibrated.