There is a big mismatch here between "sending an email to a blogger" and "increase existential risk by one in a million". All of the strategies for achieving existential risk increases that large are either major felonies, or require abusing a political office as leverage. When you first made the threat, I got angry at you on the assumption that you realized this. But if all you're threatening to do is send emails, well, I guess that's your right.