Is it possible to make a PGP message that anyone can decrypt?

Basic challenge of your problem statement lies in how incomplete your requirements are.<p>You mentioned PGP, we will assume that you want some obfuscation of your message at rest.<p>Now the issue becomes is when people need some kind of unlocking mechanism to get to original text from your obfuscated message.<p>Such unlocking mechanism is called a key or an algorithm.<p>You will need to better elucidate how you want that algorithm&#x2F;private key to be distributed to your audience.<p>Until your requirements are further refined, your problem statement shall remain not impossible yet quite easily solvable but not in ways you expected. Read on.<p>Our recommendation (given your expertise) is a substitution cipher, like ROT13 to be applied exactly twice.<p>You will find this ROT26 to be a suitable answer in being able to address all of your audience.<p>source: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;ROT13" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;ROT13</a>

I tried to look at the Reddit OP&#x27;s comment history to see if I could get some background on why they&#x27;re asking. It did not help.

Why not just write it in plain text?

Isn&#x27;t that what a signature is?

I&#x27;m not sure if I get the question, but you can use PGP to simply <i>sign</i> a message. That keeps nonrepudiation intact, but you don&#x27;t need a key to read it otherwise.