My pet peeve is when an uploader doesn't put the author - title in the file's name (but puts abbreviations, letters/numbers, etc. instead) when it's not a zip or an rar file.
If the uploader feels it will prevent someone from finding (and reporting) the file, I don't think that's going to happen because they can search a forum like I did. If I'm able to find the title/author, I'm sure others can too.
When the correct author - title isn't used in a file's name, we have to:
go back to the post and copy the author and title
go to where the file downloaded to, on the computer
right click to rename the file
then paste the correct information.
If I don't, it's impossible to search and find the file. Countless times I've:
searched my computer for a book
didn't find it
then when I made time to rename downloaded files with incomplete names, I found I already had the file.