Seems a bit aggressive to me. I don't like to be associated with the subculture of BDSM even if that is what it is.
You'll likely find people with the same concerns over there who want to ease into experimentation rather than label themselves something extreme. It's not all whips and chains and branding from the get go. The search parameters are constrained for sure though. As they are for anyone with specific preferences, really.
It's still easier to start dating someone you're into and introduce fantasies and desires as you go along. I've never met a partner who wasn't willing to indulge me, really. I think people are generally more open about trying new stuff these days. You could probably turn the 50 Shades of Grey wave to your advantage (there's got to be something those books are good for, haha).