>>42034176I thought it was just a trade that's less likely to happen in general. Shinnies have sentimental value and you wanting to trade them must mean they're pretty shitty shinnies. Not to mention the liklihood you're trading for a hacked Pokemon skyrockets and at that point you might as well just get somebody to inject a Shiny for you and keep both.
Also most of the trades I've seen here are the equivalent of:
>LF: Shiny Beast Ball Dreepy>FT: Shiny Ultra Ball Skwovet 