If you are permanently resident in Poland you can drive here legally on a UK licence for 6 months or one year. Then you must change it for a Polish licence.
No way would I exchange my British license for a Polish one - call me a snob if you like - but then when I'm back in Blighty for whatever reason I dont want to be explaining to the car hire firm or the polish that "It's alright, I can drive, I passed my test in the UK 25 years ago and wasn't "taught to drive" by some Mickey mouse Polish state sponsored cowboy".
Poland does a whole lot of things well - driving aint one of them. IMO