True, but the goal is to encourage quality comments. I think there is more benefit to allowing code markup in comments than there is potential downsides with pe

True, but the goal is to encourage quality comments. I think there is more benefit to allowing code markup in comments than there is potential downsides with people gaming the system. The system can be gamed anyway be a mildly persistent troll, so don't punish your good users by making commenting too hard! The system achieves the goal of "good comments" by putting up a friction barrier to terrible comments like the ones on YouTube, not impassible barrier to someone who intends on posting a bad comment.