My world does not involve a stigma around menstruation either.
What is with all this "my world" stuff? Have you gone insane?
The most you can say is "on a day to day basis I don't experience stigma associated with menstruation". But honestly that is the same as Barak Obama saying "on a day to day basis I don't experience racism so my world isn't racist".
I think the blindness of these posters to this is actually comedy.
How many young girls do you think feel embarrassed buying tampons and sanitary protection? Even in the UK? And that is because there is no taboo or stigma with periods right? It's all in their head?
Besides - what "world" do you live in where women in other countries aren't allowed to touch live stock if they are menstruating? Not allowed to have sex?
Get a little bit of beyond-the-end-of-my-nose and beyond-the-end-of my-middle-class-street perspective please.