They don’t use bootstrap classes, I’d have to change the CSS, or change every single class. To much work, enjoy this default theme.

If I finished my importer for Textpattern, I could ditch WordPress.

Not just changing classes, you have to add divs and crap too. Better off with a blank theme, and modify it to use stock Bootstrap.

That answers that, goodbye WordPress. Just make sure the plugin won’t import files or images, that code isn’t done, and may never be done.