I had a bunch of missing, grayed out files that I wanted to remove. I had a working copy of all the files in another drive. When I went to delete all the grayed out database entries, it asked me:

"Are you sure you want to delete 2314 files?"

Which is kind of scary. I picked one of them and tried it but it didn't actually delete the real file. It just removed the entry from the database.

I think it should say:

"Are you sure you want to remove these 2314 items from the library?"

Using v 4.1.24.1833