Thanks for your feedback. Having just rebuilt the bank feeds area we are unlikely to any development on this in the near future. However, should this requested feature receive a number of votes we can look at allocating some development time to this.
I think this is a very good idea, especially when reports are later printed out. Supplier details are not enough. If you buy something from B&Q, it could be anything!
I have subsequently discovered that it is possible to edit the description field after the bank feed posting in uploaded, which is better than nothing I guess. It's a pitty nobody at KashFlow told me this (or even realised) before I wasted time emailing KashFlow several times and looking for a solution myself!