Aliasing open_coat → open_shirt
Link to alias

Reason:

Despite what the Wiki has been made to say, it's not useful to separate this tag between a bunch of topwear (why do you think that open_shirt no longer implicates shirt to begin with?)

Other tags to implicate and blank wiki pages:

• open_hoodie
• open_jacket
• open_robe
• open_shirt
• open_vest

See these thread for more discussion:
https://e621.net/forum/show/167496
https://e621.net/forum/show/179992

Not sure about this, actually. The topwear tags should be aliased, but open_coat and open_robe (and open_kimono) seem distinct from open_shirt... Maybe those three could be aliased to a separate tag.

As far as I'm concerned, for the purposes of tags like this, "shirt" and "pants" are just stand-ins for "topwear" and "bottomwear". For the cost part people just don't distinguish them. Case in point: right now there are 50+ posts with "open_shirt" where the involved garment is a robe and over 300 where the garment is a jacket (assuming it's correctly tagged to begin with: this one involves no jacket anywhere!)

Circeus said:
As far as I'm concerned, for the purposes of tags like this, "shirt" and "pants" are just stand-ins for "topwear" and "bottomwear".

But that's the thing. Robes and kimonos aren't topwear, they're combined topwear and bottomwear.

My fuzzy memory is prodding me that, at one point, open_shirt had an implication to simply shirt. Somewhere along the line, the implication was removed, and suddenly open_shirt became the catchall for open_topwear.

Personally, I would rather have the tags left as they are, or have them all aliased together into two groups as open_topwear or open_bottomwear (with a couple exceptions as mentioned by Genjar.

Posts tagged incorrectly with open_shirt, when the character is wearing only a hoodie (and no shirt at all) are one of those little things that tweaks my OCD, and can make even a part-timer like me take on little cleanup jobs.