I think even if I wanted to boycott them I couldn't
I bought one disposable Blu once. That's it.
On the other hand, regardless how their product is (and it's not really bad, just a tad overpriced and totally insufficient for a dedicated vaper) they have made a contribution by making their product visible and present on shop shelves. They probably reached more people than any other vendor; and a lot of those people end up here inquiring about better alternatives, buy a mod and become happy vapers. So, there... it works
With Big Tobacco owning it, on the one hand philosophically I have an objection, of course. BT has killed many people through false advertising and unethical additives. On the other hand, one can hope that with such financial and lobbyist backup, Blu will help prevent a total ban or excessive restrictions. Obviously, it also points to a less desirable future where (1) the antis will be able to point at BT being behind e-cigarettes and (2) vaping supplies will almost certainly now be subject to tobacco product regulations and taxes