9. Are there still cultural differences between earth ponies, pegasi, and unicorns, or is the culture homogeneous by the time shown in canon? Are there cultural stereotypes (positive or negative)?
Post stories highlighting unique cultural practices of each tribe, or stereotyping/prejudice between them.
After Rainbow Dash accidentally says the wrong two words to exactly the wrong unicorn, she learns a lesson about the power of language -- in more than one way.