Several of us kept picking the wrong due date because of the extra week number column in the calendar/date widget. Yes, we shall be more careful, but on the other hand, it is very unusual to put up a week number as the first column. As far as I know, this feature was added because some users explicitly requested this feature, but by no means this should be the default behaviors for everyone.
Anyway, I'd like to know how to turn this week number column completely off, it does us no benefits only damages.