Someone asked me the other day about that. I didnt delve into to deeply but essentially bit bolds keyword etc. Which does nothing for SEO. Its a waste of time really. It can conceivably cause a few issues actually but the entire premise of it is frankly a tad silly. hope that helps, Nigel
you can make your own mind up, because you can get a free equivalent from SEOPressor clone site at bloggerhigh.com. It's free, and does exactly what SEOpressor does. There are also a bunch of other free plugins you might want to try.