What I go to the website http://www.straightdope.com/podcast.html it says it can’t load the feed.
Then when I visit http://straightdope.infoble.com/rss.xml it mentions the url doesn’t exist.
The RSS is still functional; the podcast is on hiatus. Not sure when it will return. We’ll let you know if/when it does.
I think you have the wrong link for the RSS feed, here is what I think it’s supposed to be:
http://boards.straightdope.com/sdmb/external.php?type=rss2
You can also create a custom RSS feed of a subset of forums by appending an include option to the link, e.g.
http://boards.straightdope.com/sdmb/external.php?type=rss2&forumids=4,12
which would only include posts from MPSIMS and IMHO. (You can get the forum ids by scrolling over the link on the main forum index.)