This is my first foray into this thread (I've been busy). My perspective from reading this last page (pg 4):
People like Lazar, Baldinger, Chatham and several others tweet clips of plays that are interesting, if not "key", and are most often worthy of at least some analysis and discussion. Some of them come with their own analysis that may provide valuable insight, but that some of us may disagree with. Again, worthy of analysis and discussion. I don't even mind if some clips are posted without accompanying analysis from the board member posting them since discussion will ensue soon enough. Frankly, I think we may not use enough outside sources. For example, there are all sorts of short instructional videos on standard line stunts (TOM, TEX, etc.) and calls that I've been watching lately (for my continuing self education). Posting links to stuff like that, when germane to the analysis of a game clip that relates to it, would be a valuable contribution for a lot of folks
For me, the analysis and discussion is the important part - and the more of it, the better - regardless whether the clip in question is "home-grown" or from an outside source. The reason for me is that the analysis and discussion using a clip (any clip) as a visual aid can be very educational for those average or casual fans who are interested in learning more.
Certainly, "home-grown" clips seem to typically cover plays that outside sources don't. They are also often higher resolution and/or cover more of the play from end-to-end. All of that is great!
However, if there's some notion being promoted that "home-grown" is always so superior to clips from outside sources that the latter should be discarded or regarded as "lower class", that feels like a purity test that completely misses the point of the thread. It reminds me of wine snobs and computer code geeks who seem to want to establish themselves as high priests in some sort of "society" that should be closed to "the unworthy" in order to better hoard knowledge and understanding and, thereby, gain authority and dominion over others.
F*ck that. It's really arrogant and stupid, IMHO. The tendency for some people to embrace that approach - keeping others ignorant for the sake of personal aggrandizement - has been harming the progress of human civilization for a long, long f*cking time.
So, the major value of re-watch for me is education for each other - and especially for those who don't understand as much as some of us. If that goes away because how it's presented isn't "pure enough" somehow, then I'm outta here.