Misusing Search Keywords/ Spiking your Blog/ Long Tailed Search

Hi
I came across a blog the other day where they were discussing whether there was any point in peppering your blog with very high profile Search Terms to spike your traffic, at the moment I guess that would be say Ann Coulter, Lindsay Lohan , Britney Spears, Vista, Eclipse, Oscars , YouTube you get drift.

I have my own doubts about this of course millions of bloggers are already using these terms legitimately. So whether it works or not and whether it's moral or not I cannot tell. But it's given me something to talk about, and originates in the fact that one of my sites that I don't pay much attention suddenly started getting lots of traffic. It's motivationtips.co.uk
any way I asked in a forum why this might be and somebody suggested that it was possibly a "long tailed" Search Term ie that somewhere on the site was a page that contained (by chance) a collection of keywords that was suddenly "hot". So back to the beginning of this Post!!