Why are people who are not TTC on the Glow App?

Not meaning to offend anyone, but why are people posting questions about their birth control or other things like that? Is this not a fertility app for getting pregnant? Why are so many posts nothing to do with TTC? Or some women who have 4 or 5 kids already? Just curious since I'm currently trying for baby #1 and I get frustrated with a lot of the posts on here.