How many WP blogs are hosted at wordpress.com? There must be many. So there are probably many site managers who wonder, as I do, why there is no general statement -- in Support or somewhere -- about the limitations that come with the hosted version.
Notably, many widgets do not run because a theme strips out HTML. It takes poking around in the CSS notes to find this out; at least it did for me. I just wanted to run a Twitter list feed in a sidebar; there are a number of tools to do that, but only, apparently, if you are running WP on your own server.
These limitations may be a function of the theme. I just don't know. And it would be helpful to know. Any comments? Thanks.