I signed up with Media Temple based on WordPress.org's recommendation (http://wordpress.org/hosting/). I purchased a Dedicated Virtual (dv) server and proceed to self install WordPress as I have with many other hosting providers.
I encountered several problems and had to contact Media Temple support. Each time I was told that they do not support WordPress and that I was on my own. The support staff were friendly and did try to help by pointing me to some outdated knowledge base articles. Otherwise I was on my own for figuring out why WordPress behaved so differently on Media Temple than it has on any other provider I have worked with.
"Please keep in mind that the (dv) Dedicated-Virtual Server is a self-managed server, and assistance with its configuration and maintenance is outside of the (mt) Media Temple scope of support. This includes configuring third party software such as WordPress and its plugins."
- Scott A, Customer Support Lead
(mt) Media Temple
I've dealt with at least five other hosting providers who have happily assisted with issues that impacted WordPress, if necessary, without a fuss. I am stunned that WordPress.org would officially recommend a hosting provider who officially backs away from supporting WordPress.
Oh right, "some will donate a portion of your fee back." It is a paid endorsement.