I've sailed since 1966 including Solo Offshore. One of the problems power boaters have with sailboats is.... Power Boaters don't know HOW to sail and as such they are often suprised and ticked off when a sailboat suddenly changes direction for no apparent (to them) reason.
Sailboats have to
Tack every once in awhile to get the boat
Upwind. Power boaters don't know what
Upwind IS and when a sailboat tacks (cuts) in front of them they are...............sometimes upset.
The case in this thread..a sailboat with sails up...but
may be under power. A sailboat under power IS a Power Boat..sails up or not. If the power boater had a rudimentary knowledge of how sailing works they would be able to see that the sailboat is
moving right along but there is NO Wind...the sails are luffing (Flapping). Sailboats do NOT sail with NO Wind...so therefore the sailboat...if moving right along with no wind is under power. Power boat rules apply.
So what is the lesson here..?? Power boaters need to
LEARN Something About Sailing to protect themselves against those sailor kooks....
NB