Are curios really that bad? I've not played since before their introduction, but thought they sounded a neat solution to the problem of macros.
I've heard that they're not that bad if you get far enough. The problem is the "getting far enough" - I just plain run out of things to do thirty minutes in while I'm waiting for cone cows and the like to finish digesting. So I go do something else, or I try to find something to do in-game; but there's only so much you can do with the starter discovery LP before you find yourself running in front of a boar to try and make something interesting happen.
This might be mitigated by being part of a group that has a stash of decent curios they're willing to share, but there's still that half an hour or two of just plain waiting for your LP so you can get the skills you need to actually do shit - which still completely ruins the game's flow because you can't do much of anything worthwhile during that time. And of course it's all for naught if you run afoul of one of the game's many colonies of assholes.
And as for macros, on the surface it seems like curios would actually be easier to macro. Granted, there's probably less returns than there were for deforestation back in world 3, but it would be a heck of a lot safer since curios process while you're logged out - so while you're not playing , you can just run a macro with a timer that changes your curios for ones in your inventory and logs you out when the curios aren't being switched. Or you could just constantly run that sort of thing on an alt and throw curios at it every so often.
So it may have solved the problem of macros leaving massive groves of stumps everywhere, but it probably didn't do shit for macros giving people more LP. And in exchange, it made it so you spend a half hour of the first bit of the game just sitting on your ass waiting for LP. Maybe longer if you're aiming for certain skills.