My columbines get those "creative" squiggles every year also, more some years than others... I do have a good population of beneficial insects out there, but maybe I don't have the right ones for these! Other than the columbines, I haven't had much issue with miners (knock wood), although back at our first place we had a lace bug problem on our azaleas.
Thanks for an interesting & informative article, Sally!
Leaf miners plague my Columbines every year turning them into ugly messes.
This year I used some Bonide systemic insecticide on a few Columbines. It appears to work well. I plan to treat them all next year.