That just tells me that you failed to either read or understand the rest of the paragraph that you just qouted.
BTW on the logic of some of this discussion, you using a computer and Internet to send this reply has used up some electrical energy and thus you just contributed to the destruction of the environment. And so did everyone else who sent or even read an email. Never mind the cryptographic computations needed to sign an email of a proposal or second.
You know, a drop in a flood and so on.
I disagree with usage of such reductionist arguments.
Best regards,
Aigars Mahinovs