Thoughts on adding chips while playing

[RichS]

O.K., here goes, first post by a long time lurker... Please be kind.

While playing in $50 buy-in games (.25/.50) I constantly add chips when I lose a hand or even when I get down to 49.00 from the blinds. I do this because the players will often call an all in and I want to win the most money I can from them.

While I've gotten in trouble a few times with this strategy (top two pair is the DEVIL [img]/images/graemlins/mad.gif[/img], three different players hit straight draws on me in an hour, none had the odds to call), it has seemed to work overall. After taking a BIG down swing on my initial $500 stake (dropped to $150 [New to online play I was bluffing too much against the big stacks]) I'm now closing in on $1k.

Is there any reason you wouldn't just add chips when you get lower than the buy-in if you felt confident that you could outplay folks post flop?

Why don't more people do this?