Very true, but in today's world it's rather difficult to meet people who are interested. Where do you go? Do you just drive by and hit on the first hot chick ya see walking on the sidewalk? Hit up a bar?
If I had to use a dating app I wouldn't advertise all that much. I'd just post an honest picture of myself and say: "Come meet me and get to know me in person if you're interested in marriage and children. Not interested in 'hook-ups'. Be serious or look elsewhere" Straightforward and to the point. A clear and logical expectation with minimal advertisement. If she asks for my job and shit I say: "I'll tell ya everything you wanna know, but only in person. Where and when do you want to meet?"
That'll screen out 90% of all the crazy chicks and that's the goal.
Especially given what women tend to advertise as "Average" body type. Yeah, average for Wal-Mart after midnight more often than not if ya catch my meaning. Also, the longer the "ad" the more fucked up they are as a person (goes for both genders). Long ass descriptions and/or detailed lists of expectations are cover for deep seated attachment issues. You can try to fix them if you want, but know what you're getting into. It's gonna take a lot of effort and patience on your part (assuming you lack those issues) to get them to the point where they're normal.
Not that it can't be worth it because that process will grant the relationship a very deep level of intimacy, but again, know what you're getting into.