Not to be overly dramatic or insult the people that post here that actually have well reasoned minds and good intentions, but some of the people like you mention do sound like they are in a cult and have been brainwashed to repeat the same things over and over while throwing their money into a garbage bin.
I'm sure there's a psychological explanation for the behavior, we like to cry 'addiction' but I think it's more complex than that. It would definitely be an interesting thing to study, but it's not like it would be a revelation. People have been behaving the same way about *insert activity here* forever.