Thanks Rob. Glad to know that you recognised the "house style" :grinning:
As I said, I report spam frequently to the Admin (via Messenger) I've been using the alternative name to make it easier for them to spot the spam posts.
I can't read the last two digits by the way. I simply add nines to the readable part of the serials so that Windows roughly self-sorts the images. If I use an 'X' or similar then Windows would sort it at the beginning as a five or six digit number.