The Post you're replying to would arguably be more impactful if it were short enough for a tweet- as it is, the point is restated two or three times. The first sentence is certainly enough to convey the message (and its subtext).
There are nuances in the other two sentences not conveyed in the first - "better without X" is not the same as "X is not doing harm". The way it's currently phrased is a better, more rounded request, giving the respondee a better anchor to work from.
You've actually highlighted how some nuance and context is lost by cutting things down to a 'soundbite'.
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