I don't think that's a "Western" viewpoint - it's a punitive, judgmental viewpoint.
It may well be (indeed, it's almost certain) that there are people registered on that site who are exactly the kind of sleazy low-lifes we tend to stereotype as the typical cheating partner. But it is equally certain that, whatever its marketing, the site was being used by people looking for company, sex, or even love in all kinds of other contexts - recently-bereaved people, for example, or those struggling with their sexuality. I would imagine that a substantial proportion of them would be people in unhappy, or loveless, relationships who for some reason or another cannot escape and are just trying to ameliorate the misery of their existence somewhat...or maybe even find an escape route.
The point is, you can't know. It is all very well sitting in judgement on these people and saying "they must have known what they were getting into", and to some extent that's true - they could not have been oblivious to the fact that they were signing up to a site whose marketing portrayed it very much as something naughty and secretive. But that doesn't mean that all of those people were doing anything so morally dubious as to warrant their public shaming and exposure.
Perhaps you might be able to tell the difference between the sleazy ones and the sad/desperate/lonely ones just by scanning the data, but I can't. And I think most people, if they're honest with themselves, would acknowledge that we have no way of knowing the back story of anyone on that list. Which means we are making judgements about them without being in possession of all the facts.
Perhaps you think the fact of their being on the site is enough. I can't speak for anyone else, but that, to me, is an appalling level of judgmentalism, and says rather more about the person sitting in judgment than about those they are judging.