The process for submitting patches probably has an even larger deterrent effect than the personalities: http://nickdesaulniers.github.io/blog/2017/05/16/submitt

The process for submitting patches probably has an even larger deterrent effect than the personalities: http://nickdesaulniers.github.io/blog/2017/05/16/submitting-your-first-patch-to-the-linux-kernel-and-responding-to-feedback/ http://nickdesaulniers.github.io/blog/2017/05/16/submitting-... I think I saw a quote from Linus that this is a good filter for non-serious contributors, but it is an additional barrier for anyone who might want to get involved.