It's correct to overplay your big hands at 25NL and below. It's also correct to get a read and find out if the guy who just called your huge raise when you held top pair is a habitual chaser, or the other solid player at the table who is likely to be ahead of you just by calling.

What I used to do at these levels, is a whole different strategy than 50NL+. At these levels, my aim was to tilt everyone. I would push all in against people in two situations. If I had a made hand, or a great hand better than theirs when they had something to call with. I would tell a bad story (such as slowplay one street) and push. Also, if I had absolutely nothing, and knew they were weak enough to fold. Seriously, if you can find spots to all in bluff at these levels and show the opponent your stupid horrible cards, you can stack them over and over again just by making hands and pushing after you do so. It doesn't even matter if your stupid horrible cards beat their stupid horrible cards. You have to show that your capable of putting a lot of chips in the middle with air. You do this only in really safe spots. The opponent thinks your out of your mind and pays you off until the end of time.

I was playing low stakes the day before yesterday ($5NL), because my friends are at that stake and I wanted to play against them. I remembered my old ways pretty quick. I bought in for $5, and left an hour later with $45. I had one guy screaming CALL! CALL! in the chat everytime I pushed all in. Of course by this time I was only pushing made hands, and occassionally bluffing all in against tight players on scary boards to show the loose douches why they should call next time I push into them. I busted the "CALL!" guy with a flush. Took his $12 stack with one slide and push, because I used his emotion against him.