My experience differs:
I've been using gmail since 2004.
I've never adjusted anything on my spam settings or filters.
My gmail spam filter intercepts about 30 spam messages a day.
Since 2004, I can only recall catching one viable email that was diverted to my spam folder.
Since 2004, I can count on one hand the number of spam messages that have successfully made it into my inbox.
GM4L.
