A loose and passive game is predictably the most fun and most profitable game type for the knowledgeable and disciplined player.
And a tight and aggressive game is predictably the least fun and least profitable game type for a knowledgeable and disciplined player.
In a loose and passive game, where your opponents play too many hands and then continue to overplay them past the flop, straightforward disciplined poker is guaranteed to win the day.
But in a tight-aggressive game, it does not matter how knowledgeable and disciplined you are. So, too, are your opponents. And, at a table of equals, everybody is slowly but surely donating… not to each other, but to the house.
That said, an essential “skill” for any winning player is the discipline to seek out friendly games (loose and passive) and to completely avoid unfriendly games (tight and aggressive). By the way, it is interesting to note that this “skill” has nothing to do with the cards you are dealt.
That said, the good news is that most low limit “no foldem holdem” tables tend toward the loose-passive variety, but…
You need to be forever vigilant and ready to find another table or to cash out if your good game goes bad.