goodbye! https://t.co/I7OYEQAYu6
McDonald's
[]
TAMPINES EAST
['goodbye', 'https://t.co/i7oyeqayu6']
[]
goodbye
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to maintenance report feedback for public flat houses."},
    ]

It seems that the post does not relate to a maintenance report feedback for public flat houses. The term "goodbye" does not provide any context or information that would suggest otherwise. Therefore, the answer is that the post does not relate to this category.