I think we should take into account the percentage of newbie frog caretakers who get pacmans because they're relatively easy to care for. So then we've got a lot of novices, and that raises the likelihood of issues, even minor ones. It took me a couple weeks to sort out heat and humidity, for instance.

Also, I personally am starting to wonder if many people overfeed their pacmans and consider that to be the standard, appropriate behavior, while ones who eat slightly less but are still healthy cause their owners to panic because they perceive them to have a poor appetite.

I don't claim to be an expert. I just noted the other day that I have almost never seen a guinea pig (for an example!) who wasn't on the chunky side. Nearly everyone gives them too much food and they seem to think it's normal for them to be obese. It makes me wonder if we're doing the same thing with pacmans.