I think the comment was a bit misguided. As Linda pointed out with the URL (Permalink structure), many of the
SEO Enhancements are configured in the admin console and the theme doesn't have too much to do with the URL structure.
Using an
SEO plugin is helpful as it allows you to tweak the Titles and Meta tags.
Making sure that you have the site set up to auto-ping and listing ping services also helps with getting the blog noticed.
Best,
Anthony