Aw. He always promised that Dilbert's tie would droop when he finally got laid. Now that will never happen.
Didn't he remove the tie in later comics?
I couldn't say. My parents have a newspaper subscription. The paper stopped carrying the strip after Adams started speaking truth to power.
I seem to remember that all of the characters went casual some years ago. But really, the last time I paid attention to the strip was when he was making fun of Lucent's "Innovation Ring" logo. Or, as we all called it, the cat's ass.
1996, we hardly knew ye.