I don't, but I can see how it might be an advantage in a small tank with flakes. Most of what I feed is sinking food that escapes the filter, or is fed far enough away from the filter that it doesn't get sucked in.
If you do go that route you'd probably be best off using a power strip so that you can flip the filter off with the touch of a button, then turn it on again once you've finished feeding. Or, if you like wiring, you could set up a switch to turn it on or off at the front of your stand with a switch/button. Obviously, you don't want to leave the filter off long term, but a few minutes would be absolutely safe.