Wow, why so offensive? No need to, buddy. Normally, when someone resorts to that, they have poor arguments to defend their stance.
Let's talk facts about it; real facts. Neither you nor me have anything that PROVES x32 and x64 are more or less safe; that would require us knowing blizzard banning methods; and we only know patterns, if at all.
But
common sense says that if Hb only runs in x32, and the number of x32 systems is 10% of the total amount, (
http://store.steampowered.com/hwsurvey?platform=pc for reference , real number is probably lower than that. )
that makes it extremely easier to check on those systems. Obvious, ain't it?
Not that they can't find other ways to identify botters. Simply put, you can't be sure you are safe. But that doesn't disable you from trying.