Is one of those things that is incredibly insane but like mainstream for a certain demographic. I mean I think the same way as you I find it like retarded and insane to share them with people.
This video for example has more than 2 million views and is just two dumb whores talking about their periods. Is fucking insane.
https://youtube.com/watch?v=gMu-apQru50
The channel that I follow (loose follow because I can't even remember the name) has this woman in their 40, fat ugly woman and this chubby teen and the only content it makes is about periods, and the woman is like incredibly disgusting because her daughter films her on the toilet a lot while she is talking and showing the tampons and shit like that.
(And I found it on 8chan a couple years ago, of course I did.)
I don't really understand what's going on something with the world that women have to share that shit with people....