So, an actual libertarian "rationalist" commentator is likely to be familiar with Hayek and one of Hayek's core arguments (not invented by him but key to his philosophy and he's one of the more famous advocates) is that you shouldn't assume you know better to create something from scratch with your limited knowledge against traditions developed and maintained across all of human history by the collective knowledge of everyone. This isn't to argue that all traditions should be upheld (as Hayek famously said "I am not a conservative") but that the burden must be on those who want to change them to reason others into why the change is superior and in their interest. Central planners fail because they assume their personal knowledge supersedes all collective historical knowledge, especially when they identify a "problem" and can see a "simple solution" for it that merely requires destroying everything and starting from Year Zero via "rational" planning.
Good luck on advancing "moral tech", Aella.