The thing is, Jim, is that most of those complaints seem to disappear after a few weeks.
Just additional comments - I have yet to read a post from someone who got past the "just quit smoking stage" and came back to report that they were still having the same issues, which then went away after they quit vaping. One guy posted that he was ABOUT to quit vaping because of issues, but I haven't seen him come back and say those issue disappeared after he quit vaping. And even if he did, he's one of a very few that have those issues.
Where are all of the people who claimed to have serious side effects (coughing up a lung, etc) who quit vaping and got better (without starting to smoke again?) Out of thousands of people who could be reporting side effects on this site, I have yet to see one who could tie those side effects to vaping. If there were more than a couple that this happened with, we would have heard about it, because it'd be a serious issue.
As I've said before, there is no doubt that some people won't be able to vape - they will probably have a bad reaction to something in the liquid. The same as some people can't drink milk (lactose intolerance) or eat peanuts (nut allergy.) But to claim that there are serious side effects of vaping IN GENERAL, based on the very few with an intolerance, is like stating nuts are dangerous because it causes some people to go into anaphylactic shock.
To me, a "known side effect" is something that affects MOST of the users, not just a very few.
People should absolutely be warned that most early side effects are also side effects associated with the body healing from smoking, but that SOME people may have an intolerance to vaping and that they should quit using them if they are still having serious side effects after a couple of weeks.
We can't go into a panic everytime a vaper reports a side effect. We have to first rule out the symptoms associated with quitting smoking and PG allergies and then that person need to have quit vaping and had the symptoms go away before we start claiming that it was VAPING that caused it and not something else.