The rating system is broken anyway, since every map that is in a SP level will get 1 star reviews cause newbies confuse map with level, and say things like "the ai's are way too strong" as feedback on the map. This already gives any map not in a SP level a major advantage.
Yeah, absolutely true. A map getting into the single player "campaign" is a death sentence for its rating.
Even popular custom single player games can do a bad number on the ratings.
Still, this would also be mitigated by
more ratings. If every map had 1000+ ratings it would be much less affected by arbitrary 1- or 5-star ratings.
I'm not sure why the number of players rating maps has gone down so drastically. Maybe because quickmatch and the mobile app (and the consequent disappearance of the real-time lobby) is less open to trying out new maps?
Edited 5/9/2021 18:12:43