BUR #61858 has been approved by @evazion.
convert pool:10081 -> abyssal_ship_transformation
Currently, the concept of 深海棲艦 (Abyssal Ship) and 深海棲艦化 (Abyssal Ship Transformation) are both merged under the single tag abyssal_ship. However, this setup feels illogical because they represent two different concepts and distinct fetishes: one is a character/faction type, while the other is a transformation/corruption trope.
This merger makes searching quite inconvenient. For example, if a user specifically wants to find artwork of original shipgirls who have been corrupted/transformed into their Abyssal versions, it is currently impossible to filter them accurately. Trying to combine abyssal_ship with tags like corruption or dark_persona in searching doesn't solve the problem, as it yields a large number of regular corruption posts that have nothing to do with the specific Abyssal aesthetic (white skin, glowing eyes, etc.).
The existing pool #10081 ("Abyssal Fleet Girls") is quite old and has long been unmaintained (and lack any NSFW posts), but it will serves as a solid foundation for this concept. If this proposal passes, I can manually garden the new tag and tag the missing posts across the site.
Regarding the tag name, I initially considered the term abyssification to match the style of other tags in tag_group:artistic_license. However, since the word "Abyssal" is not exclusive to KanColle and could apply to other fantasy franchises, abyssal_ship_transformation seems much safer for preventing confusion. That being said, I will leave both options open for voting and welcome any advice or discussion.