First of all, the point of a question forum is that you're supposed to ask questions! No one could possibly get offended for that. And no question is stupid, it's just stupid not to ask.
Ok, having done my reading, though just a home cook, i can tell you that there are different ways to make cakes, and they have different results, even if they might use the same ingredients.
creaming butter and sugar is to incorporate air into the batter. The sugar crystals cut into the butter and create air bubbles that will then expand as the batter warms. When you cream you don;t necessarily have to have soft butter, i usually do it from the fridge, but i have a good strong mixer. But the goal is to get it nice and fluffy and pale colored (that's the air being incorporated). Usually then you add eggs, one at a time, beating well between eggs, and it gets irresistibly fluffy (so be careful not to eat too much at this stage! Or you'll have to change the proportions of the other ingredients - i'm an inveterate taster, and almost love cake batter raw better than cooked!)
Some recipes, however, don't use the creaming method. (It's not another kind of creaming, it's just not creaming, if i understand correctly). In these cases there are two possibilities.
Beating eggs (or yolks) with sugar, then adding melted butter, which gives a more spongy quality, and is typical of genoise cakes. (Personally i don't much like these, however their fancy name may make them sound good - they don;t have the kind of soft moist quality that i like)
Another way is to mix dry ingredients all together, then add soft, room-temp butter (not melted) with some liquid, and beat. This makes a wonderful cake, at least since i started following the recipes of the Cake Bible, by Rose Beranbaum, which is the only place i've encountered this method (for sure there are plenty of others, just that i never came across them). However you need the recipe that is made for this method, the proportions may be different than with the creaming method.
I hope this is what you wanted to know. if not, feel free to ask more!