Single post in Guide on Shiny Hunting

It does not raise your chances of hatching shinies! In my experience, people do this because usually they have bought the shinies used in the pair from other users, and therefore the Pokemon have a better chance at making a high-percentage pair! (For example, my 99% Eevee pair consists of a Delta Normal-Normal Eevee I bought from one user and a Shiny Sylveon I bought from another!) Hope that helps explain it ^^