Agreeing with Julian Howard here. Directness is more respected than people expect, especially with to mainstream apps.
Where adultfinder compare to mainstream apps is concerned, honesty about what you want works better.
Saying it plainly saves everyone time, and that applies to to mainstream apps as much as anywhere.
If how the onboarding questions behaves once you actually use to mainstream apps is not there, I do not bother with to mainstream apps at all.
My read on adultfinder compare to mainstream apps: matching expectations early avoids mess.
The tell with to mainstream apps is usually how fast the first message arrives.