"easily judged by eyesight" / "you don"t have to own any" / you just have to "not like their advertising".
A commonly encountered hater philosophy.
How is that a "hater" philosophy?
If you see something is not up to your standard or to your liking, that's not hating, it's simply called choosing. If I see a car dripping oil, or if it's painted yellow, either way I know I won't buy it, because I don't want a car with engine problems I'll have to fix, and I don't like yellow cars I'll have to repaint to my liking. You don't have to own a product to not like it.
If someone sees a Gerber and see flaws, poor grinds, or simply if they don't like the packaging (handle design, blade profile, colors), whatever, they can gladly choose to not like it without being a "hater". It's just not for them...
The strong arm you love so much for example, it very well may be a great made knife, to you it obviously is to the point you're adamently sales pitching it, but for some 420hc steel just isn't good enough, for others they'd rather only get said entry level steel from a time tested source like Buck, for others the design is just unappealing.
Personally I fall in all 3 categories; 420hc is the lowest grade/lowest carbon level (<0.5%) steel ill even consider for a knife, and the only source I'll buy 420hc from is Buck, I won't even buy a Kershaw Link (usa made) because it's 420hc, and i love Kershaw knives, but it's 420hc and not a buck. For all other brands, the lowest grade steel i'll typically consider for a knife is 0.6% carbon or better; 440a, 12c27, 7cr series, (1055 for machetes) etc. I'd rather see krupp 4116in a budget knife by a company other then Buck, and its a very similar steel to 420hc.
I also don't like the strong arm's design; not that I think it's hideous, but it just just doesn't do anything for me.
If i was in the market for a knife like the strong arm, 3 comparable Knives I would buy without a hitch are;
4.25"
CRKT free range fixed blade in 8cr13mov (china)
I own the folding version and love it.
5.5"
cold steel peacemaker II in 4116 (Taiwan)
Have to be let down by anything I've bought from cold steel, plus my brother edc's the smaller "III"
Both cost around $30
And if it had to be USA made I'd get a 6"
ka-bar marine Hunter also in 4116 for under $50, because, kabar has yet to let me down.
I don't like Gerber because they've not served me well the last few purchases, and other cheap knives have served me better in every way. The one I do still own, is a gator machete that was on sale at Walmart, and it too is a pos. Compared to numerous other "cheap" machete's, poor grinds, cheap handle, partial tang, and inferior edge stability, next to say a Tramontina, its night and day which is better, but I keep it to do the worst tasks though because I can ding it up in the dirt and chip the edge off rocks with little to no concern...
A few billion people on this planet with litterally thousands of Knives to choose from, just because someone doesn't like something you like doesn't mean they're automatically a hater, they may just have different taste, different demands, and are allowed to choose differently to suit themselves, for whatever their reasons.