I see that there are technical problems, and usually they should notify people about it, but maybe they are working privately on it and dont want to alarm people with minor error issues. If they would announce every bug, then people would panic, so i can understand that too.
Of course I do not monitor it 24/7 But people sent e-mails in the past and nobody complained about bounces.
There is no reason to panic.
It's just not good practice to leave features in a half broken state, for a site that handles over 4000 BTC of investor money.
If the leader boards are broken, they should just disable them until they're fixed.