why is it that so many caro kann players online blunder pieces within the first ten moves?

some extremely common examples

this works so well i dont know why more people dont play this

I never knew this trap existed! I'll try it the next time someone plays the Caro-Kann against me. I'm sure they Caro-Can't win

Those are pretty well known traps when you play the advance variation (3.e5), I also have some games with those traps. The reason why this happens I feel is lack of theoretical knowledge of this particular linea with 3...c5, because of course there are other playable lines for Black after 4.dxc5

This is somewhat well-known but it works too much for 2k rapid level though.

yeah I call all players who blunder Caro kann players

I really, really, really, really, really hate playing against the Caro Kann. 

I need to find a better way to respond to it that I will enjoy and this might be one such way - with the possibility of free points. 

4....Nc6 isn't a bad move as such, the blunders come later, but more people who know what they are doing will play 4...e6

Because strong players don't play caro cann

My opponents play e6 then blunder in the following move