Hi,
Something like this ? It adds guide points at the most elevated end of each line of the selection, skips horizontal lines, removes doubles (only one point added at lines intersections).
Unzip it in Plugins folder, restart SU,
Select your lines,
Go to Plugins menu and select "Add guide points to lines"
Tell me if it is exactly what you want.
N.B.: In the next release of my "cloud" plugin, there will be an option to export a points cloud right from lines, faces, curves, polylignes, to CSV format.
Regards,
addGuidePoints2Lines.zip