It’s crazy to see Sony kill their golden goose.
It was optional. Sony’s FAQ also changed on May 3.
Do I have to sign in to PSN to play a PlayStation game on PC?
Before May 3 “Signing in to PSN is optional when playing a PlayStation game on PC.”
After May 3 “Some PlayStation games may require you to sign in and link an account for PSN.”
Sorry for the Reddit link but there’s a lot more discussion happening there:
https://www.reddit.com/r/helldivers2/comments/1cjuryr/they_lied/