Filtering tags doesn't seem to be working correctly for me. I can include tags but not exclude them. Example: If I search for +music +anime; it works as it should. But if I exclude a tag, e.g -guitar; It doesn't work.
I'm not sure if I'm doing something wrong or if the search is bugged somehow. Searching for +music +anime returns 460 wallpapers (everything on default, searching by relevance). Now, if I try to exclude guitars by adding "-guitar" to the search query, e.g +music +anime -guitar, It returns 387,595 wallpapers.
Edit: Okay, I made it work. In the API documentation for the search query, it first includes the tags, then excludes them. Like this, it transforms the URL parameter in "+music+anime-guitar". Then, the URL parses "+anime-guitar" as one tag. If we exclude the tags first, this won't happen, e.g "-guitar+music+anime", it returns 226 wallpapers instead of 461 (with +music+anime).