Consider the danger he will be in just prior to release. Perhaps Lin's tweets are meant to keep POTUS safe by basically informing the Deep State that he (Lin) has everything Trump has, and if anything happens, multiple other people are primed for release.
This warning is not just a warning from Lin but also a warning that people other than POTUS know EVERYTHING.
And nobody wants to look at or distribute child porn so as long as the media remains in Deep State hands they can just tell idiot dems what they want to hear and they'll just keep parroting it. They've explained away clear as day voter fraud, they'll explain away anything.