Until we see the proposed regulations no knows that they will look like, all we can do is guess. The one thing that is guaranteed, is that whatever they say, our vaping world will never be the same as it is today. How much our vaping world changes all depends on what those proposed regulations say. It will be many months after any proposed changed are made before any changes actually go into effect.
The FDA does not have the power to outright ban ecigs BUT through regulations they could, if they wish, produce almost the same effect as banning for the general public. We here with all our modding are not the general public, for most of us here, our vaping will survive whatever regulations the FDA comes up with. But surviving isn't the same thing as enjoying the vaping world as we know it today with all the options readily available to us in both hardware and juices supply.
IMO, ANY proposed changes in the way we get our vaping supplies today will send the vaping world into panic purchasing way beyond anything we've seen up to this point. Every year in Feb/Mar after the Chinese New York MANY people complain about vendors being out of stock and having to wait to get their supplies. There are a lot of angry vaporers at that time of year because they cant easily get what they want when they want it. Avoiding any panic purchasing by having at least a few months stash on hand could be worthwhile for many people.
IF the proposed regulations make major changes to our purchasing vendor juice containing nic (which is a likely change to expect with any regulations IMO) please try to imagine for a minute the rush on stockpiling people will do of their favorite vendor juices and on the purchase of NIC for DIY. Learning how to DIY and obtaining a supply of nic for ones freezer IMO is a good idea. Even if regulations don't make getting nic juice difficult or dont happen for many more months to come one can still easily do DIY and use what they've purchased without wasting any money.
I don't think any one should create a vaping stash just for the fact of creating a stash without giving what they are putting into their stash a lot of thought BUT I do beleive having a well thought out vaping stash that one knows they will use no matter what happens in the future makes a lot of sense.
