When I purchased https://deeplycommitted.wordpress.com I thought I needed to burn a new feed for that url. So I set up a new feed and changed the subscription links on my blog to go to that new feed. I am now starting to wonder if that was a mistake. I did that about two months ago and the new feed has 3 subscribers (one is my own, to make sure it is working right…) and the other feed has changed and grown some. I also noticed on google reader that it said the number of subscribers to the feed was unknown. I am starting to think that the new feed is confusing reader accounts and feedburner.
Do any of you have a strong grasp of how this works? Should I delete the newer feed and change the subscription links back to the older feed? Or should I just leave it alone and hope that over time it gets worked out? Thanks for any advice you can give!
Kevin M. Watson 
I was really confused about this for a long time too. I still am, to some extent.
I prefer feedburner, mostly because it is easier to track subscribers and the stats go into more detail.
There are some plugins for wordpress that really helped me. The main one that I use is called FeedSmith it redirects all the main feeds to the feedburner feed. It works like a charm for me.
Hope that helps.
Thanks Blake – I thought this would solve my problem, but alas wordpress.com does not allow plugins… only wordpress.org…