Nails are fucking bullshit. When you build something with nails you're basically saying "I expect this to pull apart in 1-5 years". Screws are slightly better, but still just a friction bond that can easily wiggle free. If you actually are building shit to stay together, you use bolts or proper wood fittings (dovetails or dowels or such like).
Of course nails do have their place - as temporary non-load-bearing tacks to hold together a structure so that the major pieces can bear the load. When a house is framed, for example, nails are used to hold the boards together, but the nails are not expected to bear the loads, they just put the boards in the right place and then the loads are tensile and compressive through the boards. It's similar to the role of rivets in an iron bridge - they should not be load bearing, they just ensure that two I-beams meet up correctly, and the load is all in the beams.
Anyway, the problem with nails is that people don't understand them (and/or get lazy) and use them incorrectly. This goes not just for DIY'ers but also contractors and expensive home builders, who wind up doing things like building railings and fences that are held together by nails such that when you lean on them the force acts to push the nail out.
Shitty nail-built bullshit.
All the shopping at Lowes / Home Depot / etc. really has illuminated my understanding of the depressing shitty quality of modern American construction. All your contractors shop at these places, when you go to your average shitty tract home, most of the home is this stuff. There just isn't a single good quality piece in the place. It's all asian-made super cheapo crap. The light switch covers are bendy plastic. The yard tables are wobbly thin metal. All the pieces are just shitty. Even if you're a contractor who wants to do better work - where do you get your supplies? There is no better choice. It's not like there's the cheap shit and then some more expensive actually well made choices, no, it's just not there at all, there is no well-made choice, you only get shit.
Drills are fucking bullshit. You take this long proboscis and of course you can't possibly line it up straight. WTF , there should be a flat metal plate around the bit which is attached by pistons to the drill body, so that you can set the plate flush and get a good perpendicular hole.
But maybe it doesn't matter because wood is fucking bullshit. You might think if you buy a 2x4 you get a piece of wood which is 2x4. Nope. It's actually probably something like 1.75 x 3.75 , because they measure the size before planing. But it's worse than that, if you buy a bunch of 2x4's, they will all be slightly different sizes, so if you try to make a flat tray from them or something it will be all uneven. But even worse than the variation in sizes, they will be warped and twisted and all out of whack in ways that make clean building seem absolutely impossible to me. I suppose higher grades of wood are probably milled more uniformly.