If you make a note to always shoot a little wider than your intended composition, having a level horizon isn't much of a problem. Crop tool in Photoshop has this in mind as it also lets you set the angle when grabbed near a corner.

In other words, when a camera has enough megapixels, take advantage of it. (Unless you're specifically shooting for poster-size images, that extra resolution gives much room for sacrifice.)

Nikon also seems to be aware of one of the other problems listed, as most of their cameras often seem to intentionally underexpose by 1/3EV or so. (At least that's what I've seen in the various reviews before I ended buying one. Seems to be true too.) That's ok though, because like in the article - you're less likely to blow out an image by over-exposing. Levels or brightness/contrast adjustment layers in post are my friend in that regard.

---

Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.