Interesting thread. A lot of us started using knots and some are still in use, despite whoopieslings/ucr and all...
Rethinking my setup and the knots, I came to realize the following
Whoopiesling larksheaded (knot?) to a treehugger. Two times (head and foot end)
Tarp ridgeline: Evenk hitch and two half hitches (head and foot end). Two knots.
Two loops (double fisherman's knot) are prussiked on the tarp ridgeline (4 knots)
8 loops (double fisherman's knot) are prussiked on the 8 guylines which are larksheaded to the loops on the tarp. The end of the guylines have a bowline
In my book that's plenty of knots... I just don't tie 'em everythime I setup camp