If you have to pick a word, what would you say Japanese is known for?
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Many people do organize them into folders thinking you have organized your email. Have you look into your folders? How organized are the emails? Putting the email into folders does not mean your organized them.
If you have email from more than two years ago on your mailbox (whether they are in folders or inbox), you are hoarding. Having tens of thousands of emails in your mailbox will slow down your system and make it impossible to recover in case there is something happen to your computer.
You should learn to archive old emails and manage your mailbox. Tell me how you organize your email.