recently a vendor told me they only use stamps and they are international. they said printed labels are only available when they go to the counter and purchase them. so for opsec reasons they only use stamps. I'm wondering how common this is. Is there any way for the vendor to purchase printed labels anonymously?
Even in the UK AFAIK its not possible to get printed labels like USPS does. Several vendors ship with stamps and for large orders go to the counters I assume.