[Heisenb3rg]

IMO skalasnky/malmuths advice about having a tight image in limit holdem is only correct under certain (most?) game conditions.
There is no way its true in all game conditions.

If the pots are frequently multiway and large preflop and your opponents will allow your tight image to manipulate and control the potsize postflop (by turning people passive to your raises).. as well as succesfully semibluff occasionally. A tight image IMO is superior to a loose image.

However, if a full ring game is playing extremly loose postflop, a tight image wont allow you to take down more pots than a loose image, so getting people to give you excess action is more important.
Although, Im not sure how the increased ability to "protect your hand" with a tight image comes into play..

In shorthanded games, winning pots due to bluff raising is not nearly as rewarding. People showdown too much, and the pots are much smaller.
The opportunity to win pots with the "first right to bluff" as well as winning more bets when you have hand are the largest source of value.

A loose agressive image both gets you more action (when you both have a hand), as well as discourages your opponents to bluff raise you without a good draw(for they fear the bluff-reraise). Your range is weak a good % of the time in shorthanded games, so people taking a lot of shots at you can be very difficult to play against.