>The format of this argument/post is to first state something that is ambiguous and wishy-washy and then follow up with a perfectly reasonable statement leaving the reader with the impression that the entire post was reasonable. I believe it’s called the Cinderella effect.
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>The converse technique that is also heavily used is to first make a few factually correct statements, lulling the reader into a positive and agreeable frame of mind, and then follow up with opinion and conjecture again leaving the reader with the impression that all points were valid.

I've once had a boss who had the habit of beginning his arguments with "you will agree with me that..."... and ending them with "so you see we can't afford to...".

It worked for just a few months - very soon, everybody said "no, I won't agree with you until I see the facts".