When I came her I was a newly-interested SxK fan with a loooong history of being a cannon-only writer, so I can empathize with your hesitancy. Honestly, I would be a
bit careful-- sites like this one tend have a much higher population of writer/readers/artists who don't like Inuyasha at all; it's a lot easier to step on toes in that area than on paring-neutral places like FF.net.
BUT, I wouldn't worry too much. Dokuga is one of the more friendly places that at least I've been to, personally, and there are also many people who ship several parings, including (as I do) both IxK and SxK.
I think you'll find that most of us don't bite.
Well... not too hard anyway.