I own a group on FB called Antique Woodworking Hand Tools – Post and Boast
that as of my writing this has 4,122 members. Most every time I go on the
site, there are a dozen or so people that want to join.
However, most members DO NOT post, do they read the postings or look at the
photos? I don't know.
It is group is for posting photographs of before and after tools, those
woodworking hand tools that are gritty and restored to spiffy. The valuable
tool you find at an estate sale for a give away price and the unusual or
“what is it” tools.
Perhaps somewhat corny but some of us like it.

I myself am not a millennial but rather a generation Xer or the very very
tail end of the baby boomers. I remember my father (WW2 generation) thought
our generation was sh!t and made no bones about saying it! This didn't help
matters and made things worse.

When I was in 5th grade, I had a teacher that unlike the other teachers in
previous lower grades made history interesting. It is mostly because of him
that I have an interest in history and I dedicated my first book to him. He
once brought us to a lecture by an older gentleman that was a local
historian and he stated, he was visiting local elementary schools because
one of us children would take his place in the future. One of those
children was me!

Perhaps if Old Tools made themselves more relevant to the millennials and
the largest generation group on this list (whom ever they are), it might
attract new members and more posts, No, I have no idea these changes could
be.

Getting back to the group in question, I think it can be summed up that:
1. There is a lot of competition from other groups (I'm probably quilty of
taking posts away from Old Tools).
2. Some members have talked themselves out.
3. Members have drifted away from Old Tools, because of, illness, death,
other interests and SENSORY OVERLOAD.

Just my $0.02
Brother Lou