Lots of good statements made today. I'll add this one to list I'm compiling.
If you are not getting the job done & only banging your gums (or keyboard): as my dad use to say: "you are as worthless to (fill in)as tit's on a boar!"
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Baseless speculation with no basis of fact. Basically...bullshit.
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Your reply sounds good on a polarized message board, but my statement is factual.
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This is my favorite:
Call: Bringing issues that MIGHT be important to the attention of board readers is my crappy little contribution here. Take it or leave it.
Response: Thank you for your crappy contributions to the bored.