Earlier quoted context omitted.
It's the loss of historical feed data that bothers me most. Sure, I can export the links to the feeds I have subscribed to, but that's the data I could have reconstructed myself.
What exactly are you referring to? If my understanding is correct you're able to export starred content as well.
- Average items/day published by subscriptions - Number and percentage of items that you actually read - Number of items you actually clicked, per-subscription - Time of day items are posted / items are read - What subscriptions haven't updated in a long time?
You are right about it exporting starred content, by the way. None of this other data, however, is available for export.