The tread you commented on started with a guy who fasts for weight loss, which would be extended fasting, so i would imagine that would be a given. The sub he linked to, /r/fasting - is also mainly focused on extended fasting.

YOU mentionened that fasting makes you lose weight - a few days won't. it'll mostly be the weight difference from emptying your stomach, aswell as water contents.

So either you realised you were wrong and tried to save face, or you didn't realise what you were commenting on.

Also thanks for the consistent downvotes - Good to see you're aware that the downvote system on reddit isn't meant to show disagreement, but irrelevancy.