The tag implication #44359 backbend -> flexible has been approved.

Reason: Backbend is almost exclusively used as reference to a contortionist's pose, thus flexible.

EDIT: The tag implication backbend -> flexible (forum #337281) has been approved by @slyroon.

palettejam said:
The tag implication #44359 backbend -> flexible has been approved.

almost exclusively

What are the exceptions?

strikerman said:
What are the exceptions?

Sometimes I see it used when there's a natural range arched back, which to be fair I'd say is wrong, but is common enough that I felt I couldn't ignore

The tag implication backbend -> flexible (forum #337281) has been approved by @slyroon.