One of the most important things about looking youthful is to have a modern haircut.

33 and proud.
#iPhoneNotch-inspired haircut
#applefanboy #echouse #12dollarhaircut @ EC House https://t.co/iNKrDKRdxk
<a href="http://instagram.com" rel="nofollow">Instagram</a>
North Region
[{'url': 'https://t.co/iNKrDKRdxk', 'expanded_url': 'https://www.instagram.com/p/CAsU5w0A9zA/?igshid=1pfjlunogbln2', 'display_url': 'instagram.com/p/CAsU5w0A9zA/…', 'indices': [180, 203]}]
SEMBAWANG CENTRAL
['one', 'important', 'thing', 'looking', 'youthful', 'modern', 'haircut', '33', 'proud', '#iphonenotch-inspired', 'haircut', '#applefanboy', '#echouse', '#12dollarhaircut', 'ec', 'house', 'https://t.co/inkrdkrdxk']
['proud', 'important', 'proud', 'important', 'proud', 'proud']
most important about looking youthful have modern haircut haircut #applefanboy #echouse #  dollarhaircut house
1 important things looking youthful modern haircut 33 proud iphonenotchinspired haircut applefanboy echouse 12dollarhaircut ec house
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not seem to be related to a maintenance report feedback for a public flat house. The post is about a haircut and the user's pride in it, and does not mention any issues or concerns related to public housing. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none", and "explanation" set to a short explanation of why the post is not related to the requested topic.