I subscribe to feeds that supply the date in dd/mm/yyyy format.  It is not RFC-822 compliant, but there it is.  Some dates expressed as nn/nn/nnnn can only be valid with dd and mm one way round.  E.g. 14/11/2008 can only be 14th November.  Newsgator correctly interprets these dates as dd/mm/yyyy.  Where NewsGator has a choice of interpreting the date as dd/mm/yyyy or mm/dd/yyyy - i.e. both are valid dates, but only one is correct - it chooses to go with mm/dd/yyyy.  So the same RSS feed supplying a date like 07/11/2008 will be interpreted by Newgator as 11th July whereas it is intended to mean 7th November. 

The end result is that posts in the feed are dated correctly if the date of the month is more than 12, whereas all other posts are dated incorrectly.  Many posts are subsequently listed well into the future or in the distant past, and this is difficult to work with when the dates are important.

It would be very useful if there was a way to configure a specific feed in NewsGator / FeedDemon such that it will understand that it is going to find nn/nn/nnnn dates and these should be should be interpreted as dd/mm/yyyy.  As I explained above, NewsGator is already capable of interpreting in this way.  The problem is that it chooses not to if the result is still a valid date.  Therefore I came to the same conclusion as Divino, that it would be great if NewsGator could have a property on the feed that allows the user to specify that the feed dates are dd/mm/yyyy format.