In fairness to any business, you can't call it a scam unless it promises something that it can't or won't deliver when you pay for it. All Zoosk promises, as far as I know, is the privilege of messaging other members.
The fact that they charge much more than competitive dating sites for this privilege doesn't make them dishonest: just stupid.
If all you want is to upload and share only what you've filmed, YouTube is a great place to do it.
Unfortunately, they now censor a number of things for copyright violation when they really have no legal need to do so. So if you're into music video remixing, voice acting for animation, or anything similar, you're better off posting your material elsewhere.