Mean What You Say, Say What You Mean

There's so many colloquialism and phrases people often employ, yet the expression has very little meaning. For example, the phrase "Needless to say....". If what follows "Needless to say" was actually needless, why say it? I personally would like to espouse the phrase, "mean what you say, say what you mean." I haven't arrived, nor might I ever, but I do like the concept of truly meaning each word I speak or write. I appreciate when speech and the written word is not filled with fluff or bounces around what is really meant or intended. Which is why I like this website: M-W. I use it at least six times daily. Which just might be a bit bizarre (bi·zarre or \be-'zär\ or if you're etymologically inclined, you could use bizzarro from the Italian tongue).

P.S. - Does anyone else think it's strange that the Word of the Day today is "scavenger"? Shouldn't it be something more obscure like "daffynitions" or "quixotic"?