I'm gonna go out on a really really long limb here and actually agree with Jade.
Because he's right, if we're going to claim we can use his domain name thing as IC information, which we all agreed was fair to do, including me, then we really can't complain when he does this as well. Yes, its sort of a shitty thing to do, and I personally refrain from Nikita having access to something unless its reasonable for her to know IC. And we can go on and on about how the internet is Galnet and since its posted on the IGS like that its all considered IC but I find that to be splitting hairs, and petty.
so lets recap:
Using IC information OOC: definitely
Using OOC information IC: poor form, but in some cases, understandable. Should be kept to absolute minimum.
Using OOC information OOC: this is where it gets interesting. If you say, OOC, on your blog, that you are going to wardec me, I will respond, OOC, and take on a wartime footing, and my character will not be shocked when the dec drops. This is just basic Opsec stuff.