You might feel differently if it was YOUR information -- especially if you made your living creating intellectual property.
The fact that there are scumbag lawyers who abuse the fair use provision of copyright law does not mean that it's right to go to the other extreme.
There are concepts such as "baby" and "bathwater" to keep in mind.
But let's take your logic and run with it and see where it takes us.
* The fact that someone leaves his front door unlocked means that it's OK for me to enter his house and take whatever I like.
* The fact that someone leaves his keys in his car means that it's OK for me to take it for a drive.
* The fact that a farmer doesn't fence in his field means that it's OK for me to go and pick his tomatoes, corn, and so forth, and take it without paying him.
Well, we could keep on going in that direction, but frankly I don't really like where it's taking us.
So I'll conclude by saying that the fact that it's easy for someone to steal something does not mean that it's right for them to steal it.