FeedBurner worked to keep using the click tracking from hurting your rankings by using 302 redirects. There was also an option to select 301 redirects, but the average user probably wouldn’t know to switch that option on.
Well, now FeedBurner has changed their all redirection to 301s. According to the AdSense for Feeds blog, FB looked at the data for redirects and realized there would be some traffic or ranking benefit for their users if they changed from 302s to 301s.
What do you think? Will this make a difference in your traffic? Did you prefer the 302s, had you opted in to the 301s?