With the first two I can at least see what the misguided owners of the bikes were going for.

Like the first one, the dude was thinking "Sweet, I'll just grab it with my thumb, and also in case I run into a car because I can't stop because I'm using my brake with my thumb, when I fly off, I'll hit the brake, so I won't have to chase down my bike."

And the top tube guy was thinking "****in' rad. Top tube brake lever. People on the internet will think this is awesome."

But the Madison guy it's like, oooh, swing and miss, champ. So close to making sense, but you dropped the ball there at the end. His heart's in the right place, he's just not very smart.