JaRule is likely endorsing whoever promises to legalize marijuana. Vint Cerf is likely endorsing the person that best represents his values. Since he is (presumably) a leader in technology and slashdot is a place for geeks, his opinion may well be relevant for the readers of this site.Stick around for logical fallacies 101.
The problem is that this engineer's should be extolled for endorsing Obama based on the qualified reasoning and logic behind his endorsement, even if those reasons are strictly based on the internet and technology. Instead, he's being extolled for endorsing Obama based on the fact that he invented the internet. It makes for a catchy headline, but it's not logical at all.