The comm's set up so that the RSS feed should pick up the lj-cut and insert a link, but it doesn't always do that, alas. I think that might be a failure of the syndication feed, particularly when it comes to graphics. :(

I'll look into seeing if there's anything I can do to make the feed more worksafe, but I'd probably recommend LJ people put the RSS feed on a filter just in case, if they're worried about something NWS popping up on their flist.