Liverpool FC have behaved pretty appalling during the Suarez saga. The FA report highlighted the inconsistancies the players evidence (they didn't believe him). After the United match, the referee asked for to come to his room to give his account of the incident but the club refused. Throughout, LFC have tried to downplay the racism charge.
That sent a wrong message to the Liverpool fans who now think it is acceptable to abuse any black player who goes to their ground.
Any sanction that Liverpool get over this latest incident will just add to their sense of grievance and feeling they are being picked on.
Considering Liverpool have such a large overseas following, the quicker they get their house in order the better.