Card is an odd guy with a lot of seemingly conflicting opinions/actions he apparently likes to express. I can't say I particularly like his views or philosophy on life, but I still loved Ender's Game. I suppose that's the great thing about good literature, despite the author's intent, much of the feeling and reasoning is developed by the reader. Maybe someday English and Literature teachers around the world will realize that.
I digress though, I'm sure a lot of people (especially on a gaming site) can identify with Mr. Card's "game addiction" troubles. I know I've certainly wasted more than my share of time playing games when I could be doing something more "productive".