High karma still serves its purpose for clearing basic AutoMod entry barriers, but it no longer guarantees distribution or reach.
Nowadays, Reddit relies heavily on Contributor Quality Score (CQS) and network/IP trust signals. If an older, high-karma account drops to a low CQS tier due to sudden IP switches or aggressive self-promotion, its posts get silently filtered regardless of total karma. Organic engagement, sub-relevance, and clean account trust metrics drive post reach now.