Right now there are about a dozen submissions of Changbae's art that have been in approval queue for about a month. They all say that 2 reviewers have determined they aren't relevant to the site.
All of these images depict Changbae's goblin OC, Adelia. In the majority of the pictures, her pointy goblin ears can be seen, which make it clear she isn't a plain human. Combined with her extremely short and thick stature, it should be obvious she's a fantasy creature. In the only images where you can't see the ears, it's because they're obscured by body parts. But those couple images are part of a larger image sequence, so I would think they should be accepted too since the sequence clearly shows a non-human character.
There are also four submissions from about 2 months ago that were deleted for being irrelevant (human only). Those images show the same goblin character, but her ears are obscured by the nun outfit she's wearing. Despite this, you can clearly see her long ears poking the fabric outward in all four pictures.
The rules for the site are "tag what you see", and I totally agree with that philosophy. But the non-human attributes of this character in these images are seemingly being ignored. The upload guidelines say that "This means that orcs, elves, plant-people, humanoid aliens, are all fine", and fantasy humanoids like orcs, goblins, and elves are usually approved. I know it's a furry/anthro focused site and humanoids are borderline as it is, but IMO these pics definitely fit in the spirit of distinctly non-human characters.
Aside from these posts (none of which are mine), some humanoid submissions get randomly rejected or ignored. Characters from Dragon Maid seem to get approved or rejected arbitrarily, despite displaying dragon horns.