Scam? WHEN is he committing to give half of his wealth away, and how much of it is he even committing to owning by the time he gives that fraction away? Half a century from now when he might be on his deathbed? When the world might be past the point of no return on several axes?

Every time I've looked at the "Giving Pledge", it's looked like a publicity stunt with zero actual commitment or effect on the pledger during most of if not their entire life. It seems to require the pledger to give up absolutely nothing until they're (near-?)dead. It's nice that they're only passing only HALF their wealth to their next of kin, I guess, but how is that going to help anybody alive right now?

Heck, what's to prevent them from spending (or transferring!) a massive chunk of their wealth during their lifetime so they have hardly anything left to give at the end?

Also, where is the actual text of the pledge? I can't find it. If it's such an awesome thing why is the text so hard to find?

And on top of this, don't forget that this is just days after his public image was tarnished, and he's trying to clean it up. Of course he would do that in a way that doesn't actually commit him to anything that would negatively impact him in the foreseeable future...