kairoeder on "[Plugin: WP RSS Aggregator] Can't import feed from a w3c valid xml"

Fixed it!

I would recommend to put this in your FAQ since this cost me 4 hours!

I had to change my "Feed Request Useragent" for whatever reason (the info is 'some servers react in unexpected ways' but this is really far from obvious..

I randomly set it to

Mozilla/5.0 (iPad; U; CPU OS 3_2_1 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Mobile/7B405

After that it just started to fetch every feed.

What a nightmare...