Is it possible to make money using your Linux knowledge if you're not a developer? I know I can become a professional devops or sysadmin if I take some courses and master advanced networking. But is there something I can do now as an average, moderately experienced linux user?
Lol
Are you sure you've read the OP?
I don't disagree with that, but again I think you're in a wrong post. Op never said that they're so experienced but just lack certifications. What I've understood is that OP is just a power user with no other experience, neither from a job, nor from personal hobbies but on production live environments
And that being said, please explain me how you end up making such assumptions about OP's skills and what did they say that made you feel that you know about their level of knowledge.
It's the opposite, I don't make any assumptions on OP's knowledge but my understanding of your comment is that you are assuming that he is just the average Joe that likes Linux but might not be able to teach on the subject.
I just told him that teaching is an avenue he could look into and he agreed. Nothing more here.