I didn't think Formaldehyde was something you wanted in your system at all. However, Formaldehyde seems to be the issue here. So, I don't really know what the deal is.
I've not actually been saying anything deffinitive either way (if we look back, the OP wanted studies or links, some were provided by others, I provided some opposing links, bizarely one was from the same source as links saying it was safe). I just don't think it's worth the risk, that's always been my point.
I don't think it would bother me one bit if, 10 years from now it was proved beyond doubt that there was no risk whatsover. I wouldn't feel like i'd missed out on something. However, I would be pretty concerned if it was the other way around. It's not like it's a fine wine or anything, it's diet soda. I just think, 'all of this over diet coke?'. It would appear that even the cancer.gov site isn't sure about it, either.
I'm pretty tired of the aspartame thing now
I'll just keep drinking water and the diet soda drinkers keep drinking diet soda and, hopefully, nothing bad will happen. I'm sure there's worse things that we all put in our bodies.