This seems more like a meta-discussion, so I’ll leave my comments about the accidents and the investigations where they are already.
The goal I have when I start the discussion is to create a place for facts to be collected, if I myself and other feel motivated to go digging and share what we find. As a result of starting the Max8 crash thread on another forum, I’ve been given more facts, more background info, and more opinions that I would otherwise have encountered if I’d just relied on the media, or sat back and plugged my ears until the final investigation report came out.
In the Max8 case, it’s even more complicated because three nations are directly involved in two similar accidents. There are additional investigations adding up to at least 5 or 6 going on simultaneously, aside from whatever Boeing is doing internally. That’s difficult to keep track of, so I appreciate how other members of the forum have notified me when some of the other investigations make a significant announcement (the Joint Task Force, for example).
It does take a bit of give on my part, firstly to make worthwhile contributions of my own (posing questions, relevant background information, analysis of results, things I think I can offer). Secondly you have to curate some of the information, and comment on it if you thing it’s misleading or wrong. Then there’s the herding of cats that comes on any forum.
That’s a small price to pay for the insight I gain from the majority of the discussion.