They questioned him according to their statement
http://www.thefa.com/news/2018/feb/21/fa-roberto-firmino-mason-holgate-investigation-decision-210218
"We took statements from a total of 12 players and officials from both teams, the match referee and the fourth official. None of these...
Well it could be classed as libel and an offense under the Defamation Act 2013 but all depends how far you would want to take it. You could report it as abusive behaviour to Twitter. Quite a few things you could do . It's not OK for people to just throw accusations out and damage a person...
Really? From the FA statement
"The evidence for the allegation came from Holgate. During a fixture between Liverpool and Everton on 5 January 2018, Holgate alleged that he had heard Firmino use a discriminatory term towards him."
Or could you not read that bit ?
Fact: the FA have stated the evidence is insufficient to proceed to a charge, that is not the same as saying there is no evidence. Correct
Fact: the FA have underlined that Holgate was entirely justified to want his claim investigated and they found he was not wasting their time. Correct
Fact...
No, they cannot state there is no evidence as Holgates allegation in itself constitutes evidence. That appears to be the only evidence - certainly from the FA statement. To say there is no evidence would mean there they would have to refute Holgates allegation which they cannot do for reasons...
He's not been charged with anything therefore there's nothing he can be proven innocent or guilty of. You talk about weight of evidence but the FA investigation showed there is not enough evidence to bring a charge. That's not to say there was no evidence as obviously Holgate made an accusation...