[idontlikeirc]

One example of this I can think of is a show from the late 90's which used the word "spaz" very liberally, which was already iffy at the time but not fully demonized. Using it nowadays could be considered a major point of contention towards your image. Words like Gypsy and Retard are more recent inclusions in this field.

[s1artibartfast]

When did spaz go out of favor? I was completely unaware it became taboo.

[Pigalowda]

It was deemed ableist by the White Knight Censorship company a few years ago. Something about cerebral palsy.