what... what exactly do you think people like dreamhost and bluehost and such do? in your mind, do they have special dreampress and bluepress "vendored" versions of wordpress?
I'm only talking about trademark law. I'm not arguing what's morally right or wrong, that's a subjective perspective. I'm not able to tell if Dreamhost and Bluehost are violating the trademark, but from what I know they are generic webhosting companies and not as easily confused with Wordpress. In my personal opinion having had a quick look at Dreamhosts page about hosting Wordpress. It seems quite obvious that they only host the Wordpress software, with prominent phrases like "optimized for WordPress" and "Recommended byWordPress.org".