I have no idea if this is accurate, but many facilities have limited the number of people.  It doesn't seem like it would apply to campsites, but they may have reduced the number of available sites to create buffers between groups to facilitate social distancing requirements.  Purely hypothetical and probably wrong...but it's out there.

Just when I thought 2020 had hit the bottom of the barrel, I learn that some people can be allergic to meat.  When I turn the clock ahead November 1 I might just turn it two months ahead.

If you like fishing and pretty surroundings, Upper St. Regis lake has a public access area for free and a canoe tour of the lake will reveal some of the original "Adirondack style" cabins built in the late 1800's and early 1900's as well as some eclectic other styles.

There are some really nice smallmouth bass and respectable (30") northern pike in the lake too.  This wiki site will give you a brief introduction.
=13pxhttps://en.wikipedia.org/wiki/Upper_St._Regis_Lake 

Be aware, the hiking in the Adirondacks is likely a bit tougher than most east coast areas - their elevation is greater by a pretty substantial margin - but the views from the peaks are quite fine of a reward.
 

Outdoor/recreation is a difficult market to make a living.  The variety required based upon the various sports that are now included means you either need a massive store to adequately cover it all or specialized small stores to focus on one aspect.  The market had a substantial consolidation south of the border when Cabela's was bought by Bass Pro - but their reach, like any massive footprint store, is very limited by population/location with many geographic areas under-serviced.  The internet availability of products has made this even more difficult to get a start without specializing.  

Depends on the feel, eye contact, etc.  I normally at least say hello and have a quick exchange if they seem amenable; I have only had one group ever not respond in any fashion.  Boaters in general, whether on the ocean, a bay, a river or a lake, will exchange at least a wave at a distance to acknowledge one another and often a verbal exchange in closer proximity.

Your list of hypotheses could be accurate or completely unrelated to the situation but is purely speculative.  There seems to be a bit of bias in several of those such as age, experience and area of residence...you could be missing out on interacting with a number of wonderful people with valuable insights if you allow those generalizations to limit your engagement.  I'm not implying you are bigoted, but those factors are ones we should all be aware of to limit their influence on our judgement upon meeting or working with others.

Hammock on bottom then self-inflating thermarest then synthetic sleeping bag on top.  I've slept in the snow and was warm enough.  Bag rated to twenty Fahrenheit.  I've used a rectangular thermarest instead of the mummy-shaped because that's what I had.  It generally stays in place but you need to develop your skill of getting in and out without mucking everything up.

I think calling the manufacturer directly is the best advice provided.  I'd be concerned with controlling the amount of heat you have to apply with the GFlex epoxy to get it to cure - I expect you can let it cure at ambient temps but not sure if the bond is as strong as heat curing.

Regarding the question of "is everything accurate?", I would say yes with one minor exception:

One area you may want to reinforce or clarify is around firewood.  Virtually all governments and regions recommend using firewood gathered locally regardless of interior or car camping to reduce the spread of disease and/or parasites.  It's why we see a plethora of those little stands in front of so many homes offering the $5 bundles - buy it or harvest it locally.  So car campers at campgrounds and interior campers should do the same thing on this one.

You could consider adding to the 'don't cut down a live tree' great advice with 'don't cut down a dead tree either' since those are sources of housing and food for many birds and small mammals (think woodpeckers and red squirrels).  Dead wood that has fallen is the best option.  This one is probably the most nit-picky of my points, but it never hurts to create awareness as it might improve behavior.

I think MartinG's inputs are also quite valid...and the point I was tip-toeing around with my statements of utility vs. entertainment.  Most of your posts are informative and entertaining - it would be a diversion to start wearing a bunch of hats.  Referencing where the best info can be found (just like you did with the PCI index on AA) can allow you to do what you do best and be a handy source to learn more as well.

I appreciate your openness and attitude - feedback is one of the most precious gifts we can receive but not everyone can take it well.  It is also a difficult task to deliver it constructively.  Hopefully we are all doing as well as you on this matter!

Consider yourself lucky - not for surviving the experience because there was little danger - but for having a front row seat to see a moose up close.

Advice for future encounters?  Make some noise if you want to keep wildlife away from you.  Saying out loud "hey there are people here" would have been adequate to likely motivate him to re-direct around the area.  I personally like to blend in to the area that and experience nature close-up like the encounter you had so I tend to be quiet, observant and enjoy the moment.  Even if it was a bear you most likely would have been safe staying quiet.  Problem bears are exceptionally rare.

Moose aren't stupid - they know that you're not a threat and they aren't going to intentionally stomp on you if you are laying around on the ground.  Their first line of defense is putting distance between them and any perceived threat.  The rules change with a breeding bull in the rut - they can be aggressive and dangerous though.