This new naming scheme, while giving helpful information in the file names, has two problems for me. Two images from the same source want to overwrite each other when saving them, and "S/mileage" breaks the save dialog, at least in Linux using Firefox. The same may be true for "juice=juice" as well, I haven't tried it yet.
I prefer the old naming rules, it's easier to sort by just looking at file names rather than choosing to sort them based on system date. Ah yeah, also agree with Paul. I must rename it manually every time i save a picture. How about a pic with tons of tags on it like a group pic of Mobekisu-J? Some program has "file name too long" problem, especially programs for backup and file transfer.