We can't change what has been done for those movies filtered at 25Hz. As far as more buyers start taking action by flooding the studios Co. emails with supported charts, I am sure they will be aware and response. Not only buyers but leading Sub manufacturers too need to take initiatives to query the studios!
At least, they should give some kind of explanation to justify their decision. We aren't too certain whether it is associated with its production cost or any other untold biz issue. Even so, they should very well aware that large portion of their sales income are also from blu-rays buyers. Most if not all, we will buy original blurays. DVDs originals have taken a back seat, or DVD can be made pirate copies easily in the market. So, the question is why do we still want to buy blurays? In recent months, bluray sales over the globe have picked up tremendously. Those who buy will only demand the best in its PQ & AQ and in fact deserve the best soundtrack. We also have every rights to seek for justifiable explanations if we discover the product that we buy cast a shadow of doubt in its quality.

If that does not represent a loss of quality in audio department, I don't know why are the US customer complaint about...
it's like buying a Porsche but they have limit your speed to a max of 110km (that's the speed limit anyway) and put a limter on it, that does not affect their quality as well, but how do you feel?

DVD is like proton to us and BD is the Porsche in the movie industry, they charge more, they should give us more.

I have played with semi-automatic pistols and rifle before when I was in overseas. I do not know how low it goes but you can feel the firepower of it.

To quote an example (not related to real guns), if you have Hulk BD. Try out the 'Lock Down' scene. When he picks up a Armalite or is it Colt M16 and fires the shots at Hulk, you can actually feels the firepower of it. I was using PC12-Plus at that time. Every single shots at -15dB. I have demo this to a few forumers here when they were at my home.

Haven't done so.
You might be correct 

Btw, to test out 25Hz filter is easy. Just set your PC12-Plus to 25Hz setting and start to watch those BDs again such as DH4.0 tunnel scene, TS, Transformers II, Kung Fu Panda and those with really nice effect and LFE. You will notice the difference instantly