Not I! Sugar water is terrible for the bees. If you want strong colonies that over-winter fine and bounce back fast in the Spring to make lots of honey, then you'd best leave them plenty of honey to make it through the winter. I only extract half of what I harvest (freezing that which I don't extract so I can give it back later if the colonies need it), and I leave a fair bit in the hives too.

Don't buy commercial honey. Buy local, small- and medium-batch honey.