This is very immature thinking and easily bypassed.
Open Wallet1, send in 1 coin. Become a bad actor.
Open new wallet2 and send 1 coin from wallet 1--> wallet 2. Shutdown Wallet 1
Become bad actor.
Repeat that over and over and you do the math on how this can be scaled out to attack the network and as you steal more coins can exponentially grow the attack footprint.
How much does it cost to own a bad IP and be a spy on tor? I think tor still works, let me check... yup
How much does a 10k machine botnet cost? According to
this, it's $200.
And some people have 100k+ botnets at their immediate disposal.