"The European Court of Human Rights distinguishes between complete sensory isolation, total social isolation and relative social isolation[30] and notes that "complete sensory isolation, coupled with total social isolation can destroy the personality and constitutes a form of inhuman treatment which cannot be justified by the requirements of security or any other reason. " https://en.m.wikipedia.org/wiki/Solitary_confinement

If the European courts find it important to distinguish between types of solidary confinement them I feel like posters should as well. Otherwise you can't blame people for defaulting to the most commonly used type of solidarity confinement.

And the US has far more prisoners than Europeans do and we use solidary confinement far more often.