With regard to published papers, if you dig deep enough you'll always come across a paper citing adverse effects of a sweetener. It's clear on the one hand that there are a lot of scientific papers out there regarding the safety of artificial sweeteners. On the other hand, there's also a lot of pseudo-scientific claptrap from other people who are said to know what they're talking about. It's not easy sometimes to distinguish one from the other.
I hadn't seen the Hull article until you mentioned it. I take it this is the one you meant?
http://www.sweetpoison.com/
It's fascinating stuff and I�ll agree that some of these claims are feasible. Follow-up evidence would have been useful but as usual, has not been forthcoming. That�s not to say that these accounts should be dismissed.
Personally, I stay clear of all of them by either taking a small amount of sugar or no sugar at all.