The tag implication #51771 tall_image -> long_image has been approved.

Reason:
tall image:
Basically ratio:<=0.25

long image:
Basically ~ratio:<=0.25 ~ratio:>=4 (I am aware it does not work with the search) Edit 3: New update allows this now buttttt... you can do it in 1 metatag instead of 2 using Edit 2's method.

All tall_images are long_images.

Though it is debatable whether or not we should have tags like tall image, since it is redundant with ratio:<=0.25. Also there's short_playtime and long_playtime, which are direct negations of each other, and is just duration:>=30 (Though it has a use with duration for gifs being borked)

See also: topic #39697

Edit: Good news with recent update, you can do ratio:>=0.25 ratio:<=4 to get -long_image, and if you add it to your blacklist, it shows all long images.

Edit 2: -ratio:0.25..4 is in effect long_image. These 2 are technically obsolete since search functions fully replace them.

EDIT: The tag implication tall_image -> long_image (forum #375428) has been approved by @spe.

The tag implication tall_image -> long_image (forum #375428) has been approved by @spe.