I've always liked to take my time as well. The fun of the game is killing things (and getting better things to kill more things to get better things, etc.). What's the point in rushing through everything? All these people want to get the best equipment or whatever, but they don't take the time to actually enjoy what the equipment they're after is supposed to be used for, which is the killing of things.
You get whatever you want out of it. You can take your time level up slowly, using low items, then medium then high items.. then you reach the end (that being Baal in Hell difficulty) and find that the game just begins. Sorry if I spoiled it for you.
I like to explore but if I want to stay with the group it sometimes mean rushing.
Also by pk I mean can you loot other players bodies after killing them?
No you can't unless it is hardcoe mode where it might be possible if victim so chooses.
I think in hardcoe when a player dies they drop their inventory, or mabey items in inventory and stash are gone forever, but the player can choose to let someone loot what the character is wearing. Solidor knows about hardcoe.
You use it and it resets your skill and stat points.