MANY take the time to understand what the stickers mean. Some stickers involve a class, or registration number limit. Others can be a limit that involves the weakest link (as delivered from factory). If the weakest link is the available spring pack, this can be improved on, by using air bags, or other means. Of course the stickers do not self adjust, when you add more capability. You still need to keep the next weakest link in mind too. Tires/wheels may be next, so that may be the limiting rating.
Jerry