So it’s not separated the ground from the DC jack is what is used to ground all the jacks and the enclosure. I thought about grounding the input jack only and using all insulated jacks but I ended up doing it the exact way that that webpage I pasted did.I am likely to build something similar - a summing buss for 4 pedals with a master bypass - and intend to use Tayda's red/green self-indicating switches. Your post inspired this.
THAT said . . . .
Is your DC power source isolated from the enclosure or do they share your box's ground?
I did come across a scheme for wiring the 3PDT so that the led leads don’t touch the signal wires. I’ll find it and post it