Mapping thing that grinds your gears (locked: 'pet peeve dumps' are awful threads)

[Hebonky]

What's a trope mappers like to do that really grind your gears.

I'll start: Placing a secret Megasphere, and then having the player do a fight that destroys that megasphere health, like, what's the point?

Or: Placing keys directly behind key doors.

[LoatharMDPhD]

// Platforming sections with more than 2 things to vault off... W/O jump...