Aw, this makes me wistful for my sex-filled relationship and travel right after college. Cheers to that sexy couple.
I suspect the downvotes are for the layers upon layers of ads that pop up, cover the video, steal click attempts on the player, etc... so if that's the case, a better source would be any site that doesn't have those issues--e.g., pornhub, xvideos? But I'm not a mod, and I didn't downvote (just commented).
Here, fixed color for youPeople often use upvotes/downvotes for things they like or don’t like instead of for relevance, as they’re supposed to be used.
Consider cow paths / desire paths or the iPhone 4 "you're holding it wrong" fiasco. In my opinion, rather than battling people / trying to stop them from using things in the way they've discovered is natural/efficient, embrace/accommodate/learn from them.
On a somewhat related note, I also agree with @Cephirux@lemmings.world: "why not create multiple communities that can cater to different individuals with different tastes?" It seem like "solving" the issue of guys posting on /c/gonewild getting downvoted by taking away downvotes is addressing the wrong problem. If a nontrivial portion of that community is signaling that it thinks male nudity deserves a downvote, find/create a welcoming community, or empower the moderators to view the members who are downvoting that content so they can be warned or blocked (if a community's rules prohibit downvoting on the basis of gender, or whatever).
Separately, seeing something that has a score of -11 (+2 / -13) signals something different to me than something that has a score of 2 (+2). Taking away downvotes removes that information.