Even if that don't have too high requirement, you still need to read the terms and conditions so you can fill it. You don't have to join in every promo the casino launch especially if the requirement is too high for you. Casinos itself will launch their promo time after time so you can select which one that you think you can fill the requirement.
Reading information about awards can be your start, and if you feel it is good enough, you will have to spend your time to read the contest's terms in order to know what you will need to do, meet the contest requirements as well as more importantly knowing about things you must avoid to do. Because it can nullify your validity of participation and activities in the contest but also can bring bigger troubles to your account after all.
Therefore, read terms before joining as this step can help you achieving many things that not only related to content award that you might win but also how you can defend your account and its fund.