Worth reading is very subjective. I think you are looking at popular opinions. The current system works that way as opposed to some randomized insertion in between. One often problem with popular opinion is that readers might jump on that trail and build a deep thread, which probably reduce the incentive to read any further by either skipping the middle to the end, ir simply ignore the rest.

Would be an interesting research to conduct if randomness can help based on say user karma. For cryto and security we know there are certain users seen as “goto”, so their opinions weigh much more and might end up being the top all the time. I’d like to see some “penalty” by promoting the less-popular users (not comment).

The point is treat tge display not entirely based on number of upvotes the entire time.