Ok, thanks. And thanks for making the tool in the first place!
I think for me, at least at the moment the frustration with kbin.social is still less than that of having to start over on a new instance, so I'll wait it out for now, and hopefully migration tools will continue evolving so it becomes less and less of a hassle as time goes on (I would gladly contribute if I had any relevant knowhow myself, unfortunately that's not the case).