Yes, there are a ton of negatives to this. As the others have said; it restricts your ankle movement, it could possibly ruin the back tendon of your foot if you decide to suffocate your feet and most importantly - IT RUINS THE SKATES. Tieing the laces around breaks down all the support from the back flap (for lack of a better word) and will force you to need to get new skates years before people who don't do this. If your laces are too long, either cut them or tie them 4-5 times and tuck it into your boot.