It does sound kind of funny, that fishing line and bamboo would keep deer away, but my experience has been that they don't like any kind of "structures" ... I only have a 2-1/2 foot fence around my garden, but I have big tomato cages, trellises, and a hoophouse inside the fence, and they never seem to bother anything in the garden until very late in the season (when all of that stuff has been taken down), if the carrots and beets are still in the ground they'll come in and dig them up. (I live in the middle of a cedar swamp so we have plenty of deer and other wildlife around).
