Tomas,
First of all thank you for Tiny Forge, excellent theme.
Have an issue with the comment section showing up on posts, it doesn't. Discussion is set in the dashboard but posts submitted to categories don't. Discussion is also enabled on individual post. Pages do not exhibit this.
Site is http://www.macrospheres.com
Front page has post exhibiting the issue, it's also in the musings category and Links is a page that allows comments.
Best regards - William