[tptacek]

You really think that now that he's posted this offer, nobody's going to troll or spam him without spending $20 first?

I'm not suggesting that this is the most impactful charity thing anyone's ever done --- this is marginal stuff, to be sure --- but the trope where we try to unwind any charitable impulse anyone has to some insidious subtextual personal interest is always tiresome and virtually never very insightful.

It's particularly dumb in this case.

[metaphorm]

you ever been to a bar/stage where there's a cover charge at the door? you know why the cover charge is such a tiny amount of money?

this is a cover charge. yes, I do expect it to keep out 99% of trolls and spammers.