I'm a bit perplexed. While early in the article you say there's a good chance that nicotine might be made very difficult to get, you close with "I don't think we have too much to worry about." I don't see the two as compatible.
Making nicotine difficult to get could quite easily halt the flow of new consumers into the market by making it difficult, or impossible, to get the kind of equipment and juice we all started with. Without those new entries, the market shrivels, and eventually dies. And, not only does the market whither, but all those people looking for a healthier way to get their nicotine are denied and, eventually, die.
I see those two things -- the slowed inflow of new vapers, and the resulting loss of life -- to be very much worth worrying about, and potentially devastating to the industry in the long term.
I think that forcing an industry underground, so long as it retains a dedicated following, is not the end of the world. It's actually helped other industries GAIN more of a following- although, in this case, the situation differs a bit.
My article is more about preserving part of the marketplace for current vapers, not about expansion of the industry into some gigantic, traditional-cigarette-killing entity that some people here might favor (as opposed to the glorified cottage industry it is now). You're missing the point, which is that I believe current vapers will always have an option to vape.
The absence of nicotine from most ready-to-use, legally-sold vaping products is something that we have to prepare for. Even with my optimistic view, I would never go as far as to assume the FDA is just going to allow people to keep selling a substance that they have been given control over.
Anyway, viewing the future in such a pessimistic and negative light will help no one. If you're so concerned, then take action! Do I feel sorry for those who are still smokers and haven't become vapers, and who may lost some of the options that are at their disposal if they wait until after the FDA takes action? Sorry, but I absolutely do not...we've been around for 6 years now, and unless you've been living under a rock or don't use the internet, it would be impossible not to notice e-cigs. There are plenty of vapers who are dedicated enough to the scene that the absence of newcomers in huge numbers isn't going to destroy us.