Have you ever read the original rules for WoW regarding language? Here are some of the basics from 2004.
When engaging in Chat in World of Warcraft, or otherwise utilizing World of Warcraft, you may not:
- (i) Transmit or post sexually explicit images or other content or language which in the sole discretion of Blizzard Entertainment is deemed to be offensive; nor shall you transmit any unlawful, harmful, threatening, abusive, harassing, defamatory, vulgar, obscene, hateful, or racially, ethnically or otherwise objectionable content or language, nor may you use a misspelling or an alternative spelling to circumvent the content and language restrictions listed above;
- (v) Communicate or post any user’s personal information in or on the World of Warcraft, or websites or forums related to World of Warcraft;
- (vii) Harass, threaten, stalk, embarrass or cause distress, unwanted attention or discomfort to another user of World of Warcraft or other person or entity; or
Source:
Original User Manual from 2004 https://bnetcmsus-a.akamaihd.net/cms/template_resource/LO0VQ46XB1281555957773363.pdf - which has the EULA at the end. It points to the requirements for accepting Terms of Use with the website for it. I selected the first archived Wayback Machine TOU for WoW from 2004. I have copied out the relevant sections for you. Yes, it included hateful names and speech as well as profanity, masked profanity, spam, etc.
https://web.archive.org/web/20041217101250/http://www.worldofwarcraft.com/legal/termsofuse.shtml