1. I'm not sure what you mean exacty, but they can view other listings of a user by checking their profile.
2. The images will not automatically delete from your host, no.
3. If you select the notification option they will receive an expiry email for paid ads. The email itself is triggered by the cron job so doesn't go out beforehand.
4. Yes, you can manually select them or turn them off if you wish.
5. There isn't a button/link already set up for this so you'd need to figure out the feed name. It's easy enough to work out for the blog posts: /feed/?post_type=featured but the ads are custom post types..
6. No
7. The existing translations we have are posted on the
Language packs page, and it doesn't appear we have a Danish translation at this time. If you did wish to look at providing a translation for this theme, you may wish to refer to our
translator offer and perhaps consider doing this for ClassiPress v3.1 due out this month?