It also works the other way around. If someone wants to find gender bender + transformation works, but don't want gender morph, having the tag means they can exclude those galleries from their search.

@akashako Indeed, but finding gender morph content by combining gender bender + transformation is not a difficult feat, most works with the two of them will give you what you are looking for, if it had many other results alongside that I'd understand its taxonomy, but as things stand I think it is redundant.

Is it really nessessary? Yes, it is a specific type of transformation. Combining transformation with gender change (which is the correct tag), does yield gender morph galleries, but it also returns stuff that is not gender morph. Identification of content that is difficult to find, and classification is the entire purpose of the taxonomy system.

I get that some of you guys wanna see the transition from one sex to the other but is this tag REALLY necessary? Like come on, the transformation tag is LITERALLY there, IT IS IT'S PURPOSE! You just need to combine it with gender bender. Like come on merge gender morph → gender bender +14

Futanarization - When a character becomes either a futanari or otokofutanari. (This can include any kind of body modification such as dick growth, breast enlargement, breast reduction, feminization, gender morph.) Gender swap - a character who becomes their opposite gender Gender morph - when a character slowly transmorphs into a different gender. The transformation can take a few minutes to a very long time.

How is this different from just gender bender?