General question. How to play against cheap stealing attempts.

[Alexey]

I am currently playing at 50NL. I play very aggressively and often reraise light in position to 3x-4x of opponents raise, I dont have to tell you that opponents fold for the most of time and such play is quite profitable. But recently I started to notice that some opponents decreased their preflop raise amount to 3BB and my reraise (9-12BB) still gives them implied odds to play with me. So. How do I have to deal with this behavior? May be I should start to flat call in position, because my odds increased? Or still continue to 3bet standard?
I will give you an example:
50NL. 6-max.
Hero is button.
Villain is CO. His stealing frequency is 25%
Blinds are nits and will likely fold to 3bet, unless they have JJ+, AK
Hero is dealt KQo.
3 folds. CO raises to $1.5
Hero? I think calling here is just bad, because we have dominated hand. Folding seems weak versus frequent stealer. SO RAISE! This is what I think about this hand.
Another example.
Same conditions as in previous one, but now hero has 76s(or 53s,9Ts, 22-66)
Now our hand is fit or fold, so I think it is better to call with them, hoping to flop monster and oponent having a good hand.
But in fact I often raise with theese hands too. I just like to raise [img]/images/graemlins/cool.gif[/img]

How about reraising light from the blinds? Is it spew?

Comments, suggestions welcome.