One time at easyDNS (in 2019), we found a customer who kept pre-funding his account with us and had enough of a balance in there to prepay his single website out to 2085. When I asked him what the hell he was doing, it turned out he was an Argentine trying to protect his savings through one of their incessant currency collapses. He was using us as a bank.

All the counters I use on my server are bi-lingual. Kanji on top, Arabic numerals on the bottom.