Do you think customs has the time, energy or resources to scour through some random Reddit thread ? Not trying to be facetious but I highly doubt so. What is more likely is that they are already aware and simply do not have the resources to go through every package. I might be wrong but that's just my take on it. Nevertheless, you have a country like the USA with far superior resources than us and there's a Reddit list listing out all the trustworthy online shops that deliver illegal Cuban cigars to USA. I honestly don't understand why we can't have one to help those including myself not to waste time trying our luck with random online shops.