Both this and the previous theme are mere default themes for SMF - no point in reading very much into it. They are being used because they come with it.
Whether Qhimm will ever finish his own theme is... a good question. Estimated time of arrival; about 5 years, I'd say.
As for the polls, I dunno if they'll ever be enabled for all forums. The poll ban has its roots in the old forums, 10 years ago.