Because chicken skin is very fatty, some people prefer to remove it. It really comes down to your personal preference on texture and meat. However, it can be beneficial to leave the skin on because there's often more flavour, and the extra fat helps to keep moisture inside of the meat as it cooks. Chicken bones also release moisture, so when you’re making baked boneless chicken thighs, keep in mind that they tend to dry out more quickly, so you really have to watch your cooking time.