Due diligence: The degree of care and caution required before making a decision. A financial and technical investigation to determine whether an investment is sound.
I guess it all depends upon what your definition of dd is. For me, looking into past filings and reading up on news events is my form of dd. Most of the in and out daytraders don't even want to hear about dd - they are in for a quick scalp.
I think you are talking more about doing dd regarding fundamental analysis and checking earnings, dividends yields, book value, p/e ratio, etc. From what I know about Ihub, these boards cater more toward traders than investors but I am sure there are some that use it exclusively.
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