I probably should play the devil's advocate to actually present an opposing side to the curiosity system:
"The main problem I see with the curiosity system is its ease to make alts and one of the source of devaluation the usefulness of mains which itself devalues the impact of a permadeath system as you no longer put your eggs in one basket so each death is more like breaking a branch of a tree than cutting its trunk which somewhat defeats the purpose of the survival aspect. The lost of value of main itself presents a problem in its own right as it makes consequences of ones own action less severe. It is arguable if this raises the aggression of different factions but even if such conflict breaks out, wars will be fruitless as warriors can be manufactored easily and even if there are more conflicts appear on Congress, it will simply be trading casualties back and forth endlessly.
I'm not as certain if the curiosity system actually solved botting rather than diverting them to other field, particular farming and autoforaging. If anything, botting may actually be more feasible since due to the emphasis on alts in this world it gives a higher net LP gain total as oppose to world 4 and earlier (this case in account after animal and initial minig LP nerf. While you have to grind hours to get up to 1 million LP on those world. You can get 50% to 100% more than that spread across 5 characters. Bots are the perfect workers to gather materials to make such curiosities with little to no risk."