does past warn history factor in to whether or not you are granted access to the donor forum?

I've donated more than enough to get access and haven't had a warn in a very long time...but I have had a lot of past warns

Don't think warnings matter much
There are people with 10 to 80% that have access

No one knows the screening process for the donor forum except for Paul himself, it might not even have to do with your account.

No, I've been granted access twice and plenty of people with high warn.

All can say u must have donated to the forum

Nobody knows the screening process except Njaguar and no information about it will be given