These are private groups and most have strict moderation to keep things within bounds. 
You can also search past posts easily and you can save posts to your page. 
I found this particular group to be very helpful. 

Bob

http://idiopath2017.wordpress.com
http://idiopath2018.wordpress.com
https://idiopath2019.home.blog
https://idiopath2020.wordpress.com

> On Apr 13, 2020, at 19:08, Richard Koerner <rjkinpb@SBCGLOBAL.NET> wrote:
> 
> Hmm-mmm...that didn't seem to work out so good.
> Trying again:  https://www.facebook.com/groups/146837062640024/
>    On Monday, April 13, 2020, 5:04:46 PM PDT, Richard Koerner <rjkinpb@sbcglobal.net> wrote:  
> 
> I know there is a bit of reluctance with many of you to look at Facebook things.  There was for me, too.  But a lot of info weaved in with all the jokes.  Worth un-weaving.
> 
> 
> 
>