[Spirochete]

Proof that this particular claim is a lie can be found here, where the term "political correctness" is used on June 19th, 1983.

Fascinating look at old NNTP headers and net addresses.

[Question_Assumptions]

Yes. The "bang" addresses and the old net organization (e.g., net.women, net.motss) was an interesting look back at things before the great reorganization and Eternal September.