Brian_Tomasik comments on A review of what affective neuroscience knows about suffering & valence. (TLDR: Affective Neuroscience is very confused about what suffering is.)

[Brian_Tomasik]

I’d suggest that if pleasure-ceptors are easy contextually habituated, they might not be pleasure-ceptors per se.

Not sure why that is unless you’re just defining things that way, which is fine. :)

BTW, this page says

While large mechanosensory neurons such as type I/​group Aß display adaptation, smaller type IV/​group C nociceptive neurons do not. As a result, pain does not usually subside rapidly but persists for long periods of time; in contrast, one quickly stops receiving touch or sensory information if surroundings remain constant.

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Arguably, we do see both of these things happen to some degree with regard to “pseudo-pleasure-ceptors” in the pelvis(?).

Yeah, as well as with various other addictions.