Reading the Leader Turnover and Droppers threads has prompted to ask a question that has puzzled me for a while:-

The universal advice when one gets a wind knot in the leader seems to to be to immediately get rid of it, either by untying it or cutting it off and tying up a new leader because of the dangers of a breakage caused by the wind knot.

Why is it then that tying multiple water knots in a leader is all hunky dory? Shouldn't they create (or even exacerbate) the same problem? Aren't wind knots and water knots basically the same thing i.e. overhand knots?

Puzzled from South Wales.