I have a hard time with this. For one, a dating site where there is 3 women for every 2 men is such an anomaly in itself, and then when word gets out that "hey, it's a dating site that isn't a total sausage fest" (to be blunt), then I can't see that ratio doing anything but skewing rapidly in the direction of every other dating site.
For the reason you describe we consciously chose to never talk publicly about gender ratios. Having predominately female users (or even close to 50/50 actives) tends to attract people for the wrong reasons.
By "wrong reasons" i am referring to the intentions of those new users.
Say your users are predominantly seeking long-term relationships, and your branding supports that. Then a bunch of men, fueled by gender-ratio marketing, flood your app seeking hookups. You will see short-term a bump in engagement and payments. A/B testing will suggest everything is great. But long-term your product loses value as your users lose faith in your ability to deliver on what they signed up for. The (in this case women) leave and the product becomes another graveyard.
