So, Dec Shield hates the service it claims to give people?
Yeah, sounds like a scam.

Change your corp to 'OUTRAEG ANGREE' or something.

Once again we sit on opposite sides of the table. I have a POS anchored in high sec, amongst other things. Right now I am on the receiving end of a war dec from a PvP corp. I have no idea why they decced me, they haven't written to me, threatened me or attempted to extort anything from me.

The consequences for them? Pay a few million ISK.

The consequences for me? I've had to take down most of the modules for my POS's, online my hardeners, ECM/Neuts and guns. I have significantly altered my EVE activities and I can't do a lot of the things I did before. Freighter runs are now a no-no unless I have heavy escort. Mining is pretty much out of the question when there are war targets online.

Now, don't take this as tears - if I had really wanted to get out of it, it costs nothing to make another corp like OP said, and move everyone there. But honestly I can't be that bothered - in fact I wanted to try out some POS gunnery but it looks like that's not going to happen. However I merely want to point out that a low sec/null sec corp that declares war on a high sec corp suffers absolutely no consequences. The payment is trivial. High sec corps usually are not combat oriented. Their low sec counterpart's behavior is not going to change. On the other hand the high sec corp a) had to grind standing for god knows how long for most of its members just to be able to anchor in high sec b) is prohibited from most of its activities (hauling/mining/manufacturing/research) during war time and c) is probably in no shape to try to bring the other party to the surrender table through military force.

So really the high sec corporation has a lot more to lose than the low sec one during a war. Therefore considering it's absolutely trivial to be a major PITA to someone just by deccing them, why would you want to prevent those who really don't want to fight to try to avoid a fight? What's next - forcing people to play EVE to get shot at and not be able to quit instead of logging out and coming back once the war is over? Let the people who don't want to fight run away, and fight people who are prepared to make a stand.

I'm sitting here right now waiting for a fight, and no one shows up. So who exactly is taking advantage of game mechanics here?

It's not what you're writing that I question. It's how you're writing. And it seems quite clear that you are upset with CCP over the recent ruling with the war dec mechanics. So upset, in fact, that you've made it your own personal mission to "abuse" this mechanic because I suspect you think that will get it changed back to the status quo.

So yes, the argument for you to go pick on players that do want to fight is quite appropriate in this case.

killing a highsec pos is trivially easy.