The tag alias #67681 2160p -> 4k has been rejected.

Reason: 2160p as horizontal or vertical pixels labelled on YouTube regardless if mets 4000 H or V pixels or not

2880x2160 labelled as 4K (4:3)
common 3840x2160 is 4K too (16:9)

so it's the alias implication of the standardization

EDIT: The tag alias 2160p -> 4k (forum #394570) has been rejected by @slyroon.

Seems this was only ever used once 8 years ago. Not sure an alias is needed unless it starts getting used a bunch again.

watsit said:
Seems this was only ever used once 8 years ago. Not sure an alias is needed unless it starts getting used a bunch again.

Then I see

The tag alias 2160p -> 4k (forum #394570) has been rejected by @slyroon.