Ruikuli said:
dunno about the other stuff but no for this. rope harness is not an actual harness, and it should not be tagged as such

There are ones which are harnesses in their use and purpose. Rope harnesses, stoppers. Even literally halters and equestrian harnesses, though you won't see them here, but there ones made from rope, a poor man's tack. Or spelunker\alpinists harnesses made from rope. Ones you think about are rope dresses.

And I added it more like a joke, because it's what is happening on the site for years. Admins just associate hyperonims with subclasses, just because they "might be", "it's easier for common folk to find it". Like BDSM <-> bondage strict link. One of most hilarious, but not obvious ones is that nipple implies breast. Not all characters have nipples on breasts, right? Well, association works 99% of time...

PS: https://e621.net/post/index/1/harness how many images there have actually a rope harness? And some have only rope dress.

Example where I get tag of "rope_harness" if I type shibari when uplaoding: https://e621.net/post/show/1842810/bound-canid-canine-female-fox-hands_behind_back-ma That picture doesn't have any harness there.