The argument pro and anti ley lines will never be resolved as long as there are a small elitist band of people who claim the exclusivity of detecting them holding sway.
But a simple question is never answered....
Why does sight alignment, a physical (and visible) proof, need a mystical invisible explanation?
Putting things in a straight(ish) line for everyone to see to be guided to(or by)as a place of worship/warning beacon/warrior's grave/battle site etc makes sense.
BTW..I'm not entirely averse to the idea of some form of energy(EM?) seeping from flaws(emptied underground streams?) in the natural bedrock...but would seepage in itself occur in straight lines as the flaws surely wouldn't be straight?