I get what you are saying, a lot of information out there is old or skewed. I'm not going to play with 100mg nic base to see if a lot of the studies and findings are accurate or not (Human guinea pig I am not). Unfortunately there is a lot of information that is either one side of the fence or the other, and they aren't even close together. I can recall when doing a science experiment you would have 2 circles, findings 1 and findings 2, the overlapping center were findings that were the same and generally accepted as facts at that point. Sadly the two findings circles for these studies don't even touch, or come close to touching, they aren't even on the same sheet of paper a lot of times.
I would expect to find some uniformity somewhere but I've not yet, now I'm not saying that little pieces from both aren't true but I'm in no position to test the findings on myself (I like breathing should it all go south well, yah). The base line is we may never know what is fact and what is fiction, remember confusion is a tactic that has worked for hundreds of years to keep the masses in check.