If you read through various threads on this Marriott forum you'll find there are a few people that do what you propose. The majority of us, though, hate the way Marriott managers sometimes throw points at us when we bring something to their attention as though we are points "pros". Most of us want something corrected or want to make sure nobody else has the same issue. For example, as a bald man with a shaved head, finding a bobby pin in my bed is something brought to the hotel's attention so that management knows the housekeeper seems to be cutting corners, not an attempt to get a free vacation.

And yes, if you did this every stay someone at MR would notice, so you might want to limit yourself to every other stay.

Over the years I've made peace with getting points for a couple reasons. First, it means the hotel had to pay a price which means the complaint will get noticed. If a front desk manager just apologizes, that might be the end of it. If the hotel has to purchase and give points, someone is more likely to notice, ask and make sure it does not happen again. Also, I only accept the points after making it clear I really don't want the points and would be fine if these are not offered.