I'm not disagreeing with you with the percentages, however, what I read is this: App: Reason you don't use the app. Sure, you don't make crafts, that's fine. Many people aren't into crafts. However, seeing the second clause and specification that it's a female website makes it come across as if you don't use Pinterest because you're a male, and that's a site for females. That in turn comes across as sexist. That might not have been your intent and I'm not saying "wtf u sexist i hate u" but it's worth considering what could and could not be viewed as offensive in the realm of sexism (well, and everything else).
I, too, have a Pinterest account yet I, too, feel that it often offers my life about as much marginal utility as an eyebrow pencil. Just like Reddit doesn't have to be about strawman feminist memes and how much your parents oppress you by making you go to church that one time, Pinterest doesn't have to be about pinata cookies and melted crayon collages. But it is.
And CRAYON LIPSTICK. Like my lips can be any colour as soon as I get around to actually make it. And eyebrow pencils are the shit. Like, my hair is very pale so my eyebrows are invisible and they do so much for a face. Erhm... I think I'm starting to see your point.
Pinterest is the ultimate "wow that looks great but let's be honest: I won't be making it anytime soon" site. I mostly use it to look at nice things and think about aesthetic for when I eventually have nice things. That link is amazing, by the way.
Okay, since I'm from Sweden I think everyone should have made a gingerbread house during their childhood. We would make them in kindergarten every year when I was a kid. In the area where I live there is a big competition around a theme where people build amazing things.