Steve... it a decision to try and keep the data as historical reference. Over the years many people have tried to delete loads of data off the site. It would make it messy and possibly good information would be lost.

If it really is causing you some distress then I shall enable editing on that section.

I've tried to catch as many user related issues as possible but obviously haven't caught them all just yet. If you find any problems, post up the thread/issue and i'll sort it.