How are OLD accounts and emails actually acquired?

Hi, wondering how sellers acquire old 2008 gmail accs, old 2010 youtube accounts, old facebook accounts with real friends activity?

Why would anyone sell their 2008 gmail or yt account? Are these safe to buy and use for long time?

Anyone have knowledge on this?

Date of account creation cannot be manipulated. So, they're original. Most users are merely re-sellers.

They're usually considered more trustworthy. Yet, social media accounts are most volatile. Maybe, you could get past aged gmail accounts but Twitter accounts might trigger PV everytime you attempt to log in from a different IP.

Sellers either created those themselves back then and farming them or they're resellers, this latter is more probable. No matter how real those accounts might look, those aren't accounts of real people, but accounts created back then with the purpose of selling them (later). Some of them come with real-looking (but actually not real) activity, others don't. If we talk about email accounts, those can have actual, real activity. Those can be used to receive verification emails for other accounts the seller creates for instance. It's actually two birds with one stone, they create activity on the email accounts, while they verify other email or social media accounts. It's called account farming. Some providers do this since ages on a big scale.

Accounts are created in advance anticipating a higher return in future. Gmail, Yahoo, FB, Instagram. And now Tiktok accounts are being registered later to be sold as aged accounts.

That clears the confusion. Ty