Planting trees is great! I love trees. But if people aren't smart enough to avoid planting them under power lines, they shouldn't complain about trimming when the tree is overgrown. Moreover, if the property owner is responsible and has the tree professionally trimmed himself, so that it avoids power lines, it's not an issue.
When my tree was struck by lightning, and brought down power lines, knocked out power to other houses, I felt terrible. I'd loved that tree, but felt terrible that my friends lost power because of my youthful stupidity is planting such a big tree under the lines. I never made that mistake again. I've lived in this house for 31 years, and my neighbors are my good friends for a reason.
Karen