As far as ignoring individual people, I try to use a little more discretion. As far as ignoring certain tags concerning the other site, its helped clean up the signal to noise ratio. Thats just how i'm dealing with it, to make my experience cleaner.
If someone else wants to make this their cool new lil "other site clone" spot and giggle around with their buddies and pat each other on the back for their contentless raving, thats fine for them, as for me, I decline. I'm choosing my own adventure, and they're choosing theirs. :)