Should an Online Player be concerned about Bot's?

Are poker ‘bots’ raking online pots?
Some suspect computer programs have infiltrated Internet games

http://www.msnbc.msn.com/id/6002298/

Concern is growing in online chat rooms and news groups devoted to poker that sophisticated card-playing robots – known as “bots” in the nomenclature of the Web – are being used on commercial gambling sites to fleece newcomers, the strategy-impaired and maybe even above-average players.
“It is pretty much a certainty that bots are playing online,” said Gautam Rao, a 43-year-old Canadian poker pro who regularly plays three high-stakes Internet games simultaneously. “… What we don’t know is how strong they are.”