Continuing the thought experiment. By stating the "reason" you're shutting down is that your project is "no longer necessary", then (i) your userbase will rapid

Continuing the thought experiment. By stating the "reason" you're shutting down is that your project is "no longer necessary", then (i) your userbase will rapidly infer that the reason is odd (e.g., https://news.ycombinator.com/item?id=7813799 https://news.ycombinator.com/item?id=7813799 ), while (ii) you can plausibly defend closing down with a straight face, in court if required ("Our raison d'être no longer applies. So obviously this was the perfect time to shutdown the project for totally this reason and not any others.") Additionally, by changing the TrueCrypt License from 3.0 to 3.1 (removing the clause requiring advertising truecrypt.org), you tacitly support TrueCrypt forks while simultaneously de-emphasising the now-compromised truecrypt.org.