These are my cranky opinions, and I reckon this thread is the place for them.
Cheap-ass gaming keyboards: Youtube is flooded with videos trying to sell the latest “cheap mechanical keyboard” to gamers. They’re all pretty much alike; it’s all about creaky plastic and dazzling RGB lights and a race to the bottom on price, and each one is amazing and you gotta buy it (according to the reviewer). They make me sick. OK, I know I was never the intended audience for those products and videos, but still I get sick and tired of seeing them.
Genuine Authentic Cherry MX switches: A lot of keyboard manufacturers and, apparently, keyboard shoppers (those cash-strapped gamers?) seem to think Genuine Authentic Cherry MX switches are the bomb, and cheap ass Chinese clones like Gateron and Outemu and Kailh are for losers. I just saw a reviewer on YouTube griping about a cheap keyboard that came with Kailh switches instead The Real Thing. Gaaaah!
Artisans: Especially the big, lumpy, bizarre looking artisans… I do not get them. I mean, I guess there must be some reason for them to exist. I see a lot of them around. But I haven’t figured it out. From where I sit they just make a keyboard ugly and more difficult to use.
Arrow keys: It seems like there’s an ongoing trend to ruin compact layouts, especially 60%, by cramming and scrunching in arrow keys to the bottom right. The result is always awkward and unpleasant; the bottom row modifiers are compromised, and sometimes the right shift key as well. I do understand the conundrum, though. 60% is so small and cool and elegant, but losing the arrow keys is a pain point for a lot of folks. I am working on a solution to this, but it'll be at least a couple of months before I can show off the prototype.
Windows keys: Expensive GB keysets with the Microsoft trademarks and no alternative provided, I'm looking at you. Then I'll have to beat the bushes looking for replacements that don't clash with rest of the set.
Winkeyless boards: With no place for the Command keys or the Fn keys. How can you even use something like that?
Base weights: Elaborately machined piece of steel or brass slots into the bottom of the case, running up the cost and weakening the structure. They do look sort of cool, if you spend a lot of time looking at the bottom of your keyboard.
Split spacebars: It seems obvious to me that every keyboard should have a split spacebar. I've wanted that for many years, and I could never understand why keyboard manufacturers don't make them. (I've heard a rumor that patents and trademarks were involved.) Give us the split spacebars already, dammit!