I have created an administration facility for UK Free TV that deals with the "automatic postcode" facility that provides links to the mapping, Digital UK trade view and BBC fault reporting system.
The first "feature" is that posts that have provided a postcode as part of the input text now use the provided postcode for the "automatic system". Before, the message creator would have had to put their details into the box at the top right for this postcode to show the automatic links. Only fully validated postcodes (with the usual space between the two parts) work for this.
The second feature is that postcodes that have been stored but do not validate will no longer show the "automatic" links. The invalid postcode is now showing as text at the end of the post.
The third "feature" is that a bug was causing some text inputs to be hidden from the end of posts. All these posts now display their text in full.