Do you mean the pronouns used to address your character are automatically edited to be what you want?
It would be interesting if people could put up lists of the pronouns they prefer, and that would give them a tool for roughly judging how much trouble people are willing to go to to appear to be on their side.
Are there any games which encourage a you/thou distinction?
No, but there's American English. I've been trying to introduce you and y'all in Cambridge, it's pretty cool.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.