Yes, when the news feed function was introduced... I added my feeds....
Then when ever I did an xf upgrade I noticed lots of older prior posted feeds - reposted.
You can see it first hand on Twitter - twitter.com/aquiacreek
Here is on example - all these - one after another after another when I upgraded....
The National Weather Service In Sterling Virginia Has Issued A * Severe Thunderstorm...
http://bit.ly/e8FTAq
Tuesday, February 22, 2011 17:55:11 via AquiaCreek .The National Weather Service Has Issued A Tornado Watch For Stafford County, Valid Until 9am
http://bit.ly/e5P38c
Tuesday, February 22, 2011 17:55:09 via AquiaCreek .The National Weather Service Has Issued A Severe Thunderstorm Warning For Stafford County,...
http://bit.ly/fKKwkP
Tuesday, February 22, 2011 17:55:08 via AquiaCreek .The National Weather Service Reports A Tornado Warning For Stafford County Until 5pm
http://bit.ly/hGgfFm
Tuesday, February 22, 2011 17:55:06 via AquiaCreek .The National Weather Service Has Issued A Tornado Watch For Stafford County, Valid Until 8pm
http://bit.ly/gddVWu
Tuesday, February 22, 2011 17:55:05 via AquiaCreek .Fifth District Local Notice To Mariners
http://bit.ly/e2qaAg
Tuesday, February 22, 2011 17:15:19 via AquiaCreek ....red Flag Warning In Effect From 9 Am To 9 Pm Est Saturday
http://bit.ly/exO4LL
Tuesday, February 22, 2011 17:15:17 via AquiaCreek ....winter Storm Warning In Effect Until 4 Am Est Thursday
http://bit.ly/fdEkSv
Tuesday, February 22, 2011 17:15:15 via AquiaCreek ....winter Storm Watch In Effect From Wednesday Afternoon Through Late Wednesday Night
http://bit.ly/fOAc3p
Tuesday, February 22, 2011 17:15:14 via AquiaCreek ....winter Storm Watch In Effect From Sunday Morning Through Late Sunday Night
http://bit.ly/hWYvRh
Tuesday, February 22, 2011 17:15:12 via AquiaCreek .The National Weather Service Has Issued A Winter Weather Advisory For Stafford County, Valid...
http://bit.ly/e5EXRj
5:15 PM Feb 22nd via AquiaCreek
Maybe they get reposted because I delete them - in an effort to clean them up?