Squares are <3Yeah, this is what gives copypaste a bad reputation. Copying sections as-is is completely fine if it's for flow/presentation reasons or if the patterns are interesting enough. That's the key--if something's to be repeated, then it should either be small patterns to create a bigger pattern or a larger pattern or section which looks and feels satisfying. Copypaste can also work as a basis for altering different parts of a pattern, even if it's just to change how the pattern ends.
especially if they're rotating
stop with the hatin' everybody ;_;
most hated mapping technique: copy-paste in bad taste.
Like, it's ok if the music has two parts that are exactly the same and the mapper uses the same objects only somehow rotated or mirrored to show that that's fine, but if parts of the map are just arbitrarily a complete copy of each other it's boring as hell to play.
The main cause of copypaste being boring is if a pattern is boring to begin with. If it's not fun to play once, then it won't be fun to play again. Also, copypaste being used between differing sections doesn't usually make sense with the music. Choruses are the most obvious application, but verses will usually have a fair amount of variance.