2x EXP Card * 2x EXP Event * 2x Entitlement EXP...

 Spoiler

For xxx% drop rates: "Family Bonding", "My Drop Rate x1.5 (15 minutes)", "My Drop Rate x2 (15 minutes)", and "My Party Drop Rate x2" do not stack with each other.

For xxx% exp: "My Exp x1.5 (15 minutes)", "My Exp x2 (15 minutes)", and "My Party Exp x2" do not stack with each other.

Look closely at each description and you will know why.

I just looked at that, and see no reason to believe that....

Nowhere does it say that 2x Drop and 2x EXP can't stack with each other, and it clearly states that My 2x and party 2x do not stack with each other, which, is what was presented in the post saying about 32x. You just further proved my point. This simply says that Family Bonding does stack with the others, but again, has dis-proven the 32x theory because of the fact that the others do not stack.
Or, if you were trying to further prove my point, then kudos to you.