This forum does not update the domain and hosting every year. The last update is in 2019 and the expiration date is 2029 and theymos bought it for 10 years.
I know, I was actually referring to the Internet Archive, the library, because for normal websites or services, their operators or creators buy yearly plans usually because they wouldn't want to pay money in advance since they might have to stop the website or service before that period.
The fact that theymos has paid for the hosting for 10 years in advance makes this forum more unique, and I knew this already.