Yup. If I can bunny-hop it, I will. If I can grind over it, I will.

Also, I'm "old-school" (godz, I hate that term.) Mtn bikes used to have shoulder pads on the frame for extended carrying. I'm perfectly fine with dismounting, climbing over the tree, getting back on, and continuing on my way. I'm riding in the woods to get away from the noise, rush, etc of daily life. I can do a 'cross-style clear of the object in very little time; but longer than jumping it via a ramp, I suppose. Why build something?

If something must be built though, go for the stacked logs/branches thing. It's all about using natural stuff gathered from the area.