@TheDog
I know I can search for them but the whole point of a category system is to not need to search for them and for people to be able to find things that they want to play in the same style. As map variety expands you'd want to be able to make to filter for category.
So for example someone looking for Domination maps might stumble on the "Steampunk" one which they otherwise wouldn't. Or if Im a fan of Total War I might stumble upon Total Ancient War. There are currently dozens of maps that are not searchable based on common map packs and these would benefit from a categorization system immediately.
For example Battle For Arda is a Middle-Earth variant, Operation Unthinkable and Ozeta's maps are Global variants, Steampunk is a Domination variant. These categories have actual utility.
Year just doesn't make any sense, it's not related to the actual thing people are searching for. There's for example 100 WW2 maps. What is "Year" going to do for anyone looking thorugh 1939-1945? Does a player playing Revised care about Total War?
Edit: An other variant instead of either of these two would be to simply have it be "Complexity". So Total War goes into 5 (most complex) Domination 4, Global/NWO 3, Revised 2, Classic 1. Non A&A would go into "Unclassified" category. Like Relic or Chess.
This would automatically group maps of the same style at least somewhat.
Regarding ratings Im fine either way, but I thought the whole reason you removed them was that people did complain. You've already rated some maps that are finished as 2. What would you rate the Capture the Flag map for example? Its (Approved/Finished) but you're rating it a 3. So its not really an equivalent of what I suggested, though it may have its own merit.
Never had a problem with the old system personally. But it was useful partly because it was so stringent
So it depends on if people like that or not.