What?
It says in SM3DW that they are enemies, though they don't hurt you at all. - 
Bowser64 (Talk - Sandbox)
- Just because they don't directly hurt you doesn't mean they aren't enemies (like Bumpties in Yoshi's Island), though I do agree they should be recategorized as a block / platform in the 3D World article since they act like that than something actively trying to impede your progress.
Ray Trace(T|C) 19:56, April 8, 2021 (EDT)
- Yeah, that'd make more sense.
20:26, April 8, 2021 (EDT)
- Doesn't the article treat it that way already?
Nightwicked Bowser 
20:41, April 8, 2021 (EDT)
- Doesn't the article treat it that way already?
- Yeah, that'd make more sense.
It also says it's an obstacle, though isn't, it's more of a platform, like Ray Trace said. - Bowser64 (Talk - Sandbox)