It is solidly actionable advice. Cleaning your room does several things: - Removes visual noise from your field of view - Reinforces the notion that you have

It is solidly actionable advice. Cleaning your room does several things: - Removes visual noise from your field of view - Reinforces the notion that you have control over some things within your environment. - Reinforces the notion that you have a right to take care of your own sphere of life and it is worthwhile to do so. - Gets you up and moving, which can reduce anxiety. So to answer your question: it gets posted because the people posting and the people upvoting believe that it is advice. This probably is a frustrating answer. If you could provide more detail about why you think it is non-advice, we might be able to give a better answer.