Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
I don't see any difference between file and files.
Alternatively, blacklist? They don't seem particularly descriptive, and I doubt anyone considers themselves an expert on the topic of files and wants to subscribe to these tags.
Just merged file → files.