And now you are cleaning your dishes with a sponge giving off residual amounts of bleach. Which is poisonous.
The real problem with using bleach to clean dishes or eating utensils is that some of us can taste it very strongly, even hours or days later. For example, the first job I had was at a fast food place and we had one idiot who used bleach to soak the plastic soft drink dispenser nozzles in overnight, instead of the provided cleaning solution (which was tasteless). I was the only one working there who noticed but I knew every single time he did it without fail.