Confused!

I play limit full ring.

I started out learning hold'em on a few different prima sites where the play is pretty tight and kind of a text book poker. If someone raises they have a hand, obviously not always KK, AA etc but a decent hand. You don't want to cold call with AJo and so on.

Here's my problem:

The site I play at now, people raise with just about anything. 34o A2o to name a few. And they don't raise to steal blinds or to because they're bluffing in general. They raise because they think they have a great hand.

So my problem is, I need to cold call alot more.
The upside is no one continue bet. 80 % of the time, if they raised pre flop, they check the flop. It's amazing what crap hands they raise with.

Another phenomena is this:

UTG limps, utg+1-mp3 limps, LP1 raises, lp2 sb bb calls.
UTG re-raise, utg+1-mp2 calls, mp3 caps, rest calls.
And these people re-raise and caps with nothing.

The good part is I'm making tons of money [img]/images/graemlins/tongue.gif[/img]
The bad parts it swings a lot. I've beaten by so many crappy 2-pairs it's not funny.

I think my original thought and question was, is it ok to cold call more against players like this? Or should I stay as tight as I used to?