LOL Maybe just maybe Ruslan doesn't want his intimate moments with his SO spread all over the net. Abstinence or do it outside of the app. is his credo.
Just an idea...
You want proof, why not start with common sense?
They know they are being filmed, they know it's on the internet, they have access to internet, how could they NOT find this site?
Getting attention from each other is for most couples the glue that keeps them together. In this case the attention is in the form of drama and fighting.
You're not a recovering perv. While you are perving you are calling someone a perv, in my book that's a hypocrite. Calling someone a perv is negative qualification of someone's character, it's a four-letter word not a diagnosis.