In order to test my hacked atom 1.0 feed, I created a bloglines account and subscribed to the feed. That was all fine, but then things got funky. Bloglines only lists the first two posts. Later posts just aren't there. It doesn't seem to be cache related, as the posts are now over 24 hours old.
I also subscribed to the RSS feed for my blog to check, and that was fine. Both feeds, atom and RSS work fine in FeedDemon. Very wierd. I'll have to register with a few more online aggregators to check this out further…stay tuned.