Nobody is being rabid, it's just incredulous that people use the trash folder as a storage folder.
If you have a gmail account you will find it also empties on a 30 day cycle.
Delete or recover deleted Gmail messages - Computer - Gmail Help (google.com)
I am with Lewis on this. It was not incredulous at all to use the trash folder as a 'pending' folder before BT started to empty it automatically. In fact it made a great deal of sense and was very useful. It was a good way of keeping your inbox uncluttered and just for new emails, and therefore a way to keep emails you did not want to store elsewhere just in case you needed one of them six months down the line. It was a change BT made without telling anyone so understandably it threw a few people. No big deal.