SF Ban prohibits the sale of any tobacco-related item in flavors, including menthol cigarettes, eliquids, etc. However, it can still be ordered online, people can buy outside of SF and bring it in, people can DIY their own, etc.
Most people who posted (in the comments section after the article linked to in the email from vaping.com), must not be ECF members, nor aware of how to DIY, how to store nic base, etc. After 1 commenter suggested just learning to DIY...another said in effect that DIY wouldn't help much, because nicotine to make it might not be available for long.
Speculation from some other posters is that the ban will go county-wide soon, and that if a certain person becomes governor...it'll likely become state-wide. It's not looking good for CA. IMO, more vapers from there need to come visit ECF and learn how to prepare for those idiotic bans!