What about running a Zope and Plone installation in a DreamHost hosting plan? Is it possible? Or may be it is an impossible dream?
I’d love to play around a bit with plone. Let’s make with the one-click plone install, eh?
I would have to say that it is likely that even if you were allowed to install and run Plone/Zope, if you had an even moderately popular site, you’d eat up enough CPU time to get yourself in an unfriendly shared-hosting situation.
Take a look at the recommended system requirements for Plone. This will most likely be the largest reason for not allowing a Plone install.
Having administered a Plone site, I’d have to say first hand that Plone and Zope are resource intensive and I would honestly recommend a dedicated server for the application.