So far there haven't been any stolen coins in the past few years as far as I am aware (or lost ones via registered mail).
At the moment I am concentrating on getting orders out in a secure manner.
Future batches will likely have a vanitgen address to decipher different batches of coins much like Mike does. This is a good idea in keeping things simple when something goes lost.
I too agree most people wont check the public list or block explorer especially people who are just learning about bitcoin/litecoin etc.
What has made Mike's coins so valuable is the confidence in his brand that has come from him being meticulous at every step.
The hologram is a very important part - an official hologram should guarantee the coin has been funded by Mike (or with Lealana coins, you).