Lakes can be a significant problem. As lakes age, they go through a process called Eutrophication that drives problem weed and algae growth. At advanced stages the algae growth can produce toxins that impact human and animal health.
HOA lakes are the centerpiece of those communities and are a reason people purchase in the community. Managers must protect water quality to protect that resource.
Golf Course Superintendents go to school to learn how to manage turfgrass, but often the lakes are the centerpiece of signature holes on the course and the eyes of the membership are drawn to them.
Lake management is required, but often the expertise to do necessary work is outside the scope of managers.