
I don't see this so much as
improperly tied knots as
mismanaged cordage
use. But please explain, as "when tension is applied" strikes me as
an expected condition to using docklines --albeit one hopes not great
tension--, so having some structure that transforms into another on
that condition begs an obvious question.
Beyond that, I've been on more than a few docks (as one of my
"Knots in the Wild" photo journals revealed), and have never
seen anything other than some embedded shock-absorption that
could ameliorate such a significant change of water level (and so
have wondered how ...).
One might wonder how busy this particular dock was, and if there
were passersby --especially of the
skipper sort-- why none
thought to redress the worsening situation by loosening the bow
line and retying (even if that meant finding auxiliary rope).
Thanks,
--dl*
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