Is it a double fisherman's if the halves are 5 feet apart?

It's all about choices.

He tied a bowline around the tree, but that isn't part of the anchor unless the clove hitch, carabiner, and runner fail. The fact that he did tie the bowline means he understands that the clove hitch isn't secure and he has added two points of failure. A bowline on a bight around the tree would be ideal.

Why we're losing trees.

The webbing is not at the base of the tree, so it is pulling much harder on the tree. The 8MM in the background is at least 12 feet up the tree. We have to stop this.

What's wrong with this picture?

Nice anchor to the big tree, but the second anchor takes a 90 degree turn to a runner and carabiner on the tiny tree. The tiny tree is taking all the force. If it fails there will be about 20 feet of slack.

Thinnest cord ever?

Might be 7mm. I've seen short pieces of 6 mm, but they had 40 feet or so of this stuff.  It can cut, and stretches so much that you will hit the ground until you are about 8 feet off the ground.

Tie every knot you know.

This little tree is the only anchor.

Because the hex has slack and is just a backup.

Might be two figure 8s with stopper knots and a clove hitch. They added a point of failure with the carabiner, gate pointing down towards the rock.

Extra links are not a good idea.

Carabiner plus mystery knot.

Lots of extra rope, instead cordalette, carabiner, and three knots.

Tiny tree with climbing rope anchor.

Dead tree plus tiny tree equals?

Yep, big tree's dead.

Bowline with no stopper knot.

Tiny tree and dumb clove hitch. The bowline is just as adjustable. 

Snag those pesky hikers.

That's about four feet up the tree.

The anchor tripped people while I was watching.

How many ropes on the tiny tree?

Poor picture, the rope is just below the branch.

Thus stuff was piled next to the trail, begging to be stolen.

Really?