Redrock3
Noone says that all people asking for help with unlocking their Garmin devices are thieves. But can you estimate the thief/not-thief ratio? You can't.
Also once the way of unlocking has been leaked, noone can hide it. Can you estimate the probability of the leakage when you help remotely some man you've never seen? You can't. And noone knows what will happen in this case and what kind of stolen Garmin devices market will emerge.
And, finally, unlocking a device isn't a matter of life and death, it's just a matter of saving some time/money. So, I guess, making honorable lockers pay for their stupidity/misfortune is better than causing something-we-don't-know with unknown probability.