A humble question

Limit hold'em has never been my game, I've tried to keep away from it, but I seem mysteriously attracted to it in some some strange way. I'm still in a learning process and have a humble question...
After been reading a lot of the mid/high stake hands in this forum - must you play the game in such a super-agressive manner? It seems all players are cocky youngbloods who'd never chicken out and raises and re-raises with very questionable hands if there's just one chance in hell they are ahead. Am I wrong to suggest a lot of the players posting here have strong egos rather than a winning aproach to the game? And finally it would be interesting to know if there's someone reading this who thinks he/she represents a different player, a somewhat straightforward style, and still doing well in high stake limit hold'em poker?