Information on how to contribute to the kernel--and most big open source projects--is readily available in multiple formats. This is the first I've heard that Stack Overflow has an appeal process.

Compare:

https://duckduckgo.com/?q=contributing+to+stack+overflow

https://duckduckgo.com/?q=contributing+to+the+linux+kernel

https://duckduckgo.com/?q=contributing+to+audacity

https://duckduckgo.com/?q=contributing+to+gnu

The closest I found to an answer on SO was marked as a duplicate by several people with no link to the previous answer.