First of all, I have read several of your posts and you obviously have a wealth of sailing knowwledge and I want you to know that I am aware of that fact. That said:
I guess I am confused even more than I thought. I thought that proper anchoring technique required me to anchor
so that no part of my swing circle crossed any part of the swinging circle of the boats around me.
If I anchor
in such a way that swinging circles cross, then boats with different windage or underbody shapes could end up hitting each other.
I thought the whole idea of proper anchoring etiquette was to be sure that no one can reach me in any conditions and I can't reach them. If I anchor
with overlapping circles, how do I pull up my anchor
when the wind or current shifts and now a boat is over my anchor.
By my way of thinking, anchoring where boats can reach me, where my circle overlaps another boat, where I depend on all boats to shift exactly together to keep us from hitting each other, is poor etiquette and dangerous.
Anchoring where no one can hit anyone else without dragging is proper etiquette.
If I am Securely anchored and another boat comes up behind me and anchors within my swinging circle I usually feel that they do not understand anchoring very well and now my boat is at risk if the wind or current shifts.
I had a boat partner once that always pulled up too close to boats already anchored and dropped the hook, and after the little boat swung into the big boat enough times, I finally stopped him from doing that.