Is the second sentence constructed correctly? I read it several times and it seems that there's a comma missing or some discrepancy. Anyway I can't get the exact meaning of the part "has been sold to advertisers is another matter".
I keep these emails partly because it’s my job to do so, but it seems that whether we’re paid to or not we can’t live without updates from our favourite social platforms. Whether this illustrates a deep need to be loved or a deep paranoia that one of these emails will tell you that your shoe size has been sold to advertisers is another matter, but it’s interesting to see that, while social sites often send out more marketing emails than other sectors, we can’t bear the thought of missing them. https://econsultancy.com/blog/64097-email-marketing-what-makes-people-unsubscribe/