Because ever year the spoilers seem to get earlier and earlier and this year they seem really difficult to avoid. Magazine/internet articles etc seem to have Judge's Category spoilers from what I've [unfortunately] glanced past. It's really difficult to avoid and the trouble is it makes it more irresistible.
I think the Final 12 has been posted online now as well...and there's still two weeks until we find out the Final 12.
They definitely need to something; either start filming later or...tell the contestants/crew to shut their mouths.
I hate spoilers and trying to avoid them