Changed due to being a member of this site? Not at all 
Changed from reading books, and going to tournaments? 100-200 points I guess.
Oh, I've been a member longer that I realize -- I join back in Jan 2009 (apparently) probably to make 1 post or play 1 game or something. A year or two after that I became active.
I learned how after joining, but it's been pretty flat since then.
i think my game has changed alot i play higher players and i dont lose as much:)
im alot better than iv ever been
I'm still SUCKEN.
How much has your chess improved since joining this site?