I know that there are several topics about it, but they are all dead and in my opinion it's a small feature that could be easily implemented and can help a lot with searching for quality unranked maps and ranked as well. I mean this thing: 
It's not very hard to find a nice, quality map when there are 20 or 50 of them.
The problem appears when there are hundreds or even thousands of them and most of them have 0 favorites, so downloading each of them is a time wasting blind pick especially when high percentage of these maps is made by beginner mappers which means that the map is usually low quality or not playable at all.
For ranked maps it's a little bit easier, because there is less of them, so when you type your favorite artist you get few results instead of few hundreds and if that's not enough you can still sort them by ratings, but sadly you can't rate unranked maps (this could be added too by the way).
This feature could save a lot of time for people looking for nice maps and would help the greatest maps to be noticed by more players.
p.s sorry for overusing the word "them" couldn't find a synonym.
It's not very hard to find a nice, quality map when there are 20 or 50 of them.
The problem appears when there are hundreds or even thousands of them and most of them have 0 favorites, so downloading each of them is a time wasting blind pick especially when high percentage of these maps is made by beginner mappers which means that the map is usually low quality or not playable at all.
For ranked maps it's a little bit easier, because there is less of them, so when you type your favorite artist you get few results instead of few hundreds and if that's not enough you can still sort them by ratings, but sadly you can't rate unranked maps (this could be added too by the way).
This feature could save a lot of time for people looking for nice maps and would help the greatest maps to be noticed by more players.
p.s sorry for overusing the word "them" couldn't find a synonym.