The OP has stated his opinions, and his thoughts. They work for him.
But not everything is cut & dried & "only one way."
Let's look at the 3 things he's mentioned.
Open carry. As noted,, bear country, or hunting or whatever,, very common, and the best method. Middle of most cities that are not used to seeing firearms,, maybe not as good, but if legal, as noted, it allows the average citizen who may not have much education about firearms to see an honest citizen, going about their daily life w/o being a threat. I have had that happen a fair amount,, because I've had folks ASK me about my carrying a gun openly. So far,, ALL have been very positive discussions, and I've helped educate many people.
In my business, I go all over several counties & towns. We are allowed CCW here as well as Open Carry. I was raised to do certain things,, such as tuck my shirt into my pants. So CCW isn't an easy option,, especially in my daily work due to my wearing T-shirts mostly. If I had a holster on my belt it would broadcast that I carry a gun, but if empty, would say; "I'm unarmed." Or, if I go to a customer's house,, an empty holster lets them KNOW I carry a firearm,, and many may be uncomfortable with that. I may not get a job from some of them.
But I do carry a gun, just tucked into my belt, (a good solid, rigid belt,) as if it were an IWB holster type. I can easily remove it & put it in the vehicle holster when necessary, and yet, put it on my person when I'm not working for someone.
If you are a thug, bent on shooting up a place or people,, you MIGHT try & shoot me first. But I make sure I'm always aware of my surroundings, sit in places where I'm more protected, and in general, do not present my self as an easy target. We call that "situational awareness." And very often,, I've zeroed in on a person, who wasn't doing anything,, but just the way they look, or were acting, caused me to heighten my awareness of a POTENTIAL issue before it could happen.
So, I guess that Open Carry , as you say may be dumb,, but I respectfully disagree. There are plenty of reasons to legally open carry & are quite valid.
(2) Posting pictures of your collection openly.
I can agree with this somewhat. Again, it also depends upon who you are, where you live & how your collection is stored. But in the current day & age of the internet, cameras everywhere,, it's often possible for potential thugs to possibly target a known house or whatever to try & steal from. But many people live in places that thugs prefer to avoid just because of the very likelihood of being caught or even shot trying to do so. Most thugs prefer a quick "in & out" type of theft. And they do not want dogs, or homeowners, or even good neighbors catching them in the act.
In general, I can agree that "bragging" too much MAY be unwise. But not always.
(3) Reloads for self defense.
So far,, I don't think anyone has been tried in a court after shooting a criminal where the issue of "reloads vs factory" has been a point of contention. An easy defense against a prosecutor would be to say; "I'd been target shooting recently & forgot to put factory ammo in my gun." That's just one quick example of shutting down a line of questioning. BUT,, if a person was being tried because they purposely went "hunting people" (I hate using this term, but say, did a mass shooting,) even then if they used reloads a prosecutor MIGHT say; "You purposely built your ammo to cause massive injury & death" as a means of trying to assist in a conviction. But a good defense lawyer can easily point out all the factory ammo purposely designed to do the exact same thing. And much of the factory ammo can often be more devastating than handloads.
My worries about this are very low.
As with others here,, JMO!
