I don't think u guys should be complaining.
I have around 250 doujin covers saved and if the title wasn't on the image/file name, guess what? I didn't bother to save it.
he probably did the same thing and copy pasta the files into his cover folder.
while I believe most of mine do have a name due to being extracted from rar files with names, I'm sure that's not the case for every doujin out there.
Great thread OP, one of these days ill share my collection of covers lol