IMHO this is clearly a joke...if a tweet like this is enough to be a "privacy" concern I don't see the difference with, for example, Amazon SEO associating with

IMHO this is clearly a joke...if a tweet like this is enough to be a "privacy" concern I don't see the difference with, for example, Amazon SEO associating with your account whatever related product to your search. You search for a Blu-ray movie once and then you're stuck with all the related garbage for at least 2 weeks or so. As far as we know, the data behind that tweet could also be not backed by real data, if it was, it most probably would be anonymized. I don't know if it's just me but I cannot really see the concern here.