Taking advantage of this time of changes, I have one suggestion and a half.
1) The half one is the final inclusion of the System - Disk Cleaners
category (see above).
2) With regard to the second, I am aware that it is virtually impossible translate it into reality, but I will also submit it:
The idea is to add a field, that could be named "Secondary Features" "Accessory Features", "Additional Features" or something like that, with the same elements of the "Category" field.
In this way we would avoid the clutter in the field "Category", which can become very confusing.
Category: Graphics - Viewers (27)
Additional Features: Audio - Players, Graphics - Processing, Graphics - Screen Capture, Video - Players
This way we avoid another problem: it is common to see IrfanView at the top of the Audio - Players, or XnView at the top of Video - Players when you select Most popular first
(right now IrfanView is the second in Audio Players and Video Players, XnView is fifth in Video Players, and I don't think that's an accurate reflex of the reality)