Just wanted to mention this. I recently changed from Blinklist (which has been having ongoing problems) to Magnolia (which so far is brilliant) to feed my bookmarks by RSS. Since changing I have had no problems whatever and the feeds show up in timely fashion without any need to force them, which I often had to do previously. ( I did spend several minutes trying to force one feed only to realise I had used the old Blinklist tag name rather than the new one. Doh ! )
I wanted to mention this because it shows that feed problems can often be caused by the originating source even though their RSS feed looks fine and shows up promptly. So I'm sure some of us are guilty of blaming FeedDigest when it's not their fault :) For all those times I muttered under my breath...sorry! ;)