While a link MAY, on the surface, appear OK, it's always good to vet the site before posting it for others. In this case, there was enough of a question regarding the safety of the site to warrant removal.
As a reminder:
http://www.e-cigarette-forum.com/forum/ecf-forum-rules/51178-forum-rules.html
17. Linking to low-quality websites
a. No links to low-quality websites are allowed. This means sites that are banned by search engines to a greater or lesser degree; websites that are rated poorly by safe-surf organizations; and sites that we rate as being of low quality. Such sites include but are not limited to those listed in banned sig links (see below).
b. Posting live links [1] to propaganda against e-cigarettes, low-quality unresearched or slanted press articles, or materials containing deliberate attacks on e-cigarettes unsupportable by independent evidence, is not allowed. Links should be broken by placing spaces in the domain part of the URL, or any other method that prevents browsers or search engines seeing a link [2].