They will email the LGBTQ organization at the university. And the only place they'll be is that club. For BOLD most people were only emailing the Hispanic / Black frats & organizations.
I know that Google even has a dedicated team who does interview prep & mock interviews (with real questions btw) for `diversity` candidates. This training is not available to whites / asian males. Obviously if you've interviewed 10x before hand and seen all the real interview questions, you're going to do better.
Basically they are doing everything they can to make sure diversity candidates are applying and have the absolute best chance of getting in.