Do not create multiple accounts

Does anyone actually follow this rule?

yes, my friend did make multiple accounts and he got banned 0_o

And, I'm actually wondering, why is that a rule?

@SowaTuTu i think it could be because people could farm rating off their other account.
they could play against their other account and then resign immediately

Maybe you're right, but would it actually be such a problem? You'd have to gain rating on both anyway, as I believe for this to work both of the accounts would have to have similar ratings.

#5
No, a player could keep making new accounts and thus propel the rating of his newest account above that of Carlsen.

Besides it makes sense to make several accounts, like player, player_berserk, player_blindfold

true but you could make two completely fresh accounts with rating 1500?
Then one of the accounts would probably gain 200+ rating in one game

Lichess detects sandbagging immediately and it will be followed with a ban. A few alternate accounts is allowed, but you can not use them for malicious intent.

I don't think this is a hard rule, although it is "discouraged".

In any case... I see no legitimate reason to have multiple accounts. Nor have I ever had multiple accounts on any server.

#8
If multiple accounts were allowed, then:
make new accounts A and B both at 1500. B wins all games against A. B at 1800 A at 1200. Close account A. Make new account C at 1500, win all games against B. C at 2100, B at 1500. Close account B. Make new account D at 1500, win all games against C. D at 2400, C at 1800. Close account C. Make new account E at 1500, win all games against D. E at 2700, D at 2100. Close account D. Open account F at 1500, win all games against E. F at 3000, E at 2400. Close account E.