Don't despair. Sometimes the person doing the interviewing is "not in charge of the follow up" because the company's HR department is. And, as we know, while a candidate anxious for feedback, the HR person may be bogged down dealing with a hundred issues a week. If the DM, RPM, or community manager is able to follow up, they may also be dealing with a heavy To Do list, too, and following up with candidates keeps getting pushed further on their list.
I was once in this same position, and persisted by following up with both Manager and Owner, even bringing snacks and treats a couple of weeks later to the property to "check in" and was offered the position a couple weeks later.
Sometimes, as a job seeker, we have to rise above our idea of what others should do and take the professionalism to the next level to get what we want and deserve.