Sit down 5 hours and write good content on a topic that you understand and that matters to the community. Then try to post on the right time. I didn't expect anybody to read this to be honest. I just posted it and got back to coding. Then I had a look and was amazed by the reactions. I posted it a few days ago on reddit/r/graphql but didn't get much attention. Believe in yourself and try to write good content. Don't try to get karma. Content is valuable if it starts an engaging conversation.