The discussion of pure nicotine on ECF is not permitted.
Forum Rules
35. Nicotine strength
a. The maximum nicotine strength of refills (any liquid that is a finished product for retail sale for vaping whether bottled or sold with or within hardware) allowed to be offered for sale on ECF by Suppliers is 45mg/ml or 4.5%.
b. No liquid of strength higher than this can be specifically mentioned or offered on ECF by Suppliers. Trade deals are exempt, within private supplier boards only, as higher strengths are needed for trade bulk mixing. Note that there are shipping restrictions in some countries for toxic materials, which can be obtained by application to your local Postal Service and private shippers, and you are cautioned not to contravene these restrictions.
c. Suppliers can sell whatever strength they wish with the exception of pure nicotine (900mg/ml / 90% and above). Sites that sell pure nicotine will be blocked by ECF [3]. We define 'pure nicotine' as 90% / 900mg/ml or higher. Wholesale supplies are exempt from this ruling. We expect that Suppliers will ensure that wholesale customers are well aware of (a) the high risks, and (b) the equipment and precautions needed.
d. There is a limit on public discussion of 200mg (20%) maximum for mixing discussion, recipes and tutorials, and also in the Classifieds. Members may not discuss the use of refills (any liquids) stronger than 200mg.
e. The use of 'Pure Nicotine' cannot be discussed (in detail) on public forums on ECF (trade forums are exempt) due to the hazard [1] - see Notes below. That is to say, it can be mentioned in passing but not discussed at length especially as regards mixing.
It may be time to review this rule. This is not 2009. There are people here who are qualified to deal with strengths greater than 200mg/ml, and helping each other is what we do here. This isn't a question of cost savings anymore, or logistics. We're talking about a perma-ban and these higher strengths WILL become more commonly used due to regulations, taxes, oversight, etc.
We can stick our head in the sand, and let the uninformed guess their way through. Why is there not a 12a CDR limit on battery talk? Because it is important to discuss what is out there, how to use it properly, and why we need to understand and respect the more potent choices.