Why would someone choose a vercel app without a domain to store their journal entries?

Journals are a type of note that someone might want to access at any time in their life. Do you plan on keeping this active for 20, 30, ... 50 years? On this domain? With Google SSO?

I think a TextEdit or Notepad document in a directory or an email sent to yourself would be even more minimal (no extra login needed) and actually give people the ability to have their data when this goes down in a few weeks/months.