thanks Twitchyseal.

"there's obviously a big difference between people using multiple accounts to post on the forum and people creating hundreds or thousands of accounts "
Exactly.

"It's technically not against the rules."
There is no specific "farmer" rule, but there are other rules. No spam. No low quality posts.
How is it possible to own and post with "hundreds" of accounts and not be low quality spam!
Mods will judge each as an individual!

There is another rule. If 1 account is banned, all his alts are also banned.
"it is not the account, it is the farmer person.