I think this is a completely separate website. Sure, the creators of SW positioned it as a successor to EP, but it's a different code base with different management. I doubt it's possible to make a direct replacement without using the same code base and the same management, but if that was the case EP would still be around, right? It's a chicken-and-egg thing.
What I think some people forget is that social networking sites learn from your behaviour; if you look at diaper and poop posts or follow (and are possibly followed by) people into that, then all you'll see SW as is a diaper and poop website. Same goes for dating or whatever fetish or interest you like or dislike. And if you truthfully join a group like (to make up a random example that probably does exist) "I was spanked as a child", then guess what? You're going to see spanking posts and be messaged by spankos.
In other words, each person's behaviour is what makes SW what it is to them.
