Okay, I can go with everything you say, with this premise (that YOU indirectly suggest) regarding "revisitations with the deep, dark past":

Feel free to bring up the failures of the past when bringing it up may actually have some pertinence to a current event. 

Otherwise, it has little or no pertinence to the currect situation.  It's just rehash of the KNOWN.  It's as pertinent as when PTSC went to $7 in 1999/2000.  If I continuously reposted about that event in the past, people would be screaming "the world is different now", "everything has changed", and "is has no pertinence to the current situation".  Yup.  But it might be pertinent if we prevail in a big way near term.  And THAT might, maybe, be the time to bring it up (and probably not even then).  But not repeatedly up until that time.

You say:

"If I, or anyone else, can't post an opinion (or fact) citing a mistake or slip-up or a failure to capitalize on an opportunity by mgmt without being lynched then the board serves no purpose."

and:

"expect that anything mgmt says is taken with a grain of salt, and gone over with a fine tooth comb.".

Fine, when management says or does something, scrutinize.  And if by some stretch a look at the past adds something to the srcutiny, by all means.....  Until then, it's just an adverse distraction for NO benefit.  If the focus is continually directed to the mis-steps of the past, "then the board serves no purpose".  Here, as in any investing, it's all about the present and the future.  If it's not, you may want to check out BWI at buggywhip.com.

JMHO,

SGE