I don't mean that going down is hard to take, although it might be if you are still at the competetive stage, I mean it literally isn't easy keeping in the demotion zone while still maintaining your streak and completing the monthly challenge.
I recently changed my profile back to public and was pleased to see I had unknowingly dropped down from Diamond, and out the bottom of the Obsidian into Pearl.
This inspired me to see how low I could go and still do a daily practice and complete the monthly challenge. Today, I am second in the demotion zone but perilously close to going up. I could only manage one practice today but still need 66 XP to complete the November challenge before my birthday next Wednesday.