Just searching for forum whitelisting I found this post/thread. It might be a good place to start - unless an admin just does it before your post is received by them (from this topic).
How do you go about it?If you're a brand new user to the forum with no previously bannd accounts;
Send me an email to -
whitelistby_upgrade00@protonmail.com
You may need to answer a few questions which I would ask randomly,
Based on your answers, your request could be accepted or rejected.
You could also get a reputable account to vouch for you on this thread.