When I signed in I though it was weird as hell too, and even pondered why KYC was not enforced to delimit the creation of Alt accounts (newbies …).

I have another account that I use to scrape data from the forum. I do not want to use my main account for that, lest it be banned for scraping at some point, thus the Alt account. Generally speaking, people use Alt accounts to:

-   Participate in multiple campaigns on the forum. This is allowed, providing you are ethical (i.e. the accounts don’t participate in the same campaing simultaneously, thet don’t merit each other, they don’t create fake conversations amongst themselves, etc.).

-   Distinguish when they are using the main account from another one from which they participate in a less demanding manner (i.e. using a phone with fat fingers will normally lead to shorter elaborated posts, and that may differ from the style one wants on his main account).

-   Participate in a conversation without unveiling their main account, for fear of retaliation against their main account.

-   Try to bypass bans (which they are not allowed to, except for appealing on Meta).

-   Etc.

Now obviously people do create multiple accounts for the wrong reasons: trying to scam, bumping services (not really worth it now on the boards where it makes sense), creating a farm of accounts that merit each other and/or participate in the same campaign simultaneously, creating account to try to sell them off later on, etc.