Implicating kyonko -> genderswap.
Implicating naruko -> genderswap.
Implicating luluko -> genderswap.
Implicating suzumiya_haruhiko -> genderswap.
Implicating nagato_yuuki -> genderswap.
Implicating asahina_mitsuru -> genderswap.
Implicating asakura_ryou -> genderswap.
Implicating koizumi_itsuki_(female) -> genderswap.
Implicating hatsune mikuo -> genderswap.
Implicating kaiko -> genderswap.
Implicating meito -> genderswap.
Implicating Megurine_Luka-kun -> genderswap.

Reason: Named or no, they're still genderswapped, right?

PS: still adding more as I remember/find them

eaaaahhh

We generally don't do implications like this.

Wait, really? Rationale?

One major problem is you can't tag genderswap cosplays, a girl cosplaying kyonko is not a genderswap even if kyonko is. I'm sure there's more reasons.

While that's usually a fair point, this case seems much less certain. For one thing, from what I've seen, a good number of them already wear clothes that are (mostly) their usual in the cases where a particular costume can be identified at all. And the other side of that is where the "costume" is identical the other characters' costumes.

By way of example, cosplaying Naruko means...what, exactly? In most cases she'll be wearing a variation of Naruto's orange getup, in which case someone imitating that style will probably be called out for cosplaying Naruto himself, rather than the gender inversion. And of course, that makes sense: if you were to graph it, Naruto would be the "parent node" of both that outfit and Naruko. In the case that she's not wearing different clothes, I still find it rather unlikely that there will ever be any single unified thing that could be identified as "Naruko's Costume."

In a similar vein, cosplaying Kyonko is not unlike cosplaying Nagato Yuki. Is there demonstrably some particular set of clothing outside of the "standard" Haruhi high school girls' uniform that can be reliably attributed to Kyonko? If there isn't, I can't honestly see that there could be any conflict (and of course the same holds for the entire genderswapped cast in that case).

An example of a post that these implications would make difficult: post #222729

What kumarei said. Let's just continue to tag these manually, we've done pretty well with that so far.

DschingisKhan said:
By way of example, cosplaying Naruko means...what, exactly?

The whisker marks on the face plus the blonde twintails would be the key elements.

Another kyonko without genderswap: post #219350

I think it's important to note that there are two possible uses of the tag genderswap, intuitively:

1) in combination with character tags, indicates that a person depicted in the image is a gender-swapped version of one of the characters listed in the tags.
2) in combination with character tags, indicates that one of the character tags is a genderswapped version of some other character tag, whether that other tag is in the tag list or not.

The standard usage seems to be 1), but maybe we need to start a tag for 2)? That would at least prevent people from trying too hard to incorporate 2) into 1).