The phrase "a platform to accuse" is correct and usable in written English.
It can be used in contexts where someone is discussing a medium or opportunity for making accusations or expressing grievances.
Example: "The article served as a platform to accuse the government of negligence in handling the crisis."
Alternatives: "a venue for accusations" or "a medium for blame".
As John Farrell guided Boston back to the postseason, Bobby Valentine re-emerged to reminisce about being manager of the Mets on the anniversary of 9/11, where he promptly used his platform to accuse the Yankees of not doing enough after the terrorist attacks.
and others have taken to the Senate floor and other platforms to accuse the brothers of trying to "buy America".
Shortly after 9/11, a VoA report on Afghanistan included remarks by the then leader of the Taliban, Mullah Omar Mohammed, prompting the Bush administration to accuse it of giving a platform to terrorists.
The ICTJ's report says the commission's hearings gave those accused of violence a platform to make "self-serving" justifications without facing rigorous questioning.
Some activists have criticised the film and accused the film-maker of giving a platform to the rapist.
The statement accused candidates of using the election as a platform to "openly promote" independence, saying such actions went against China's constitution and Hong Kong law.
But some have accused the women of using the movement as a platform to gain political capital.
But the Bow Group is boycotting the Tory conference in Birmingham, accusing the party high command of not offering enough of a platform to rank-and-file members.
Tony Abbott has accused the ABC of betraying millions of Australians by giving a platform to a "convicted criminal and terrorist sympathiser" after the appearance of Zaky Mallah in the audience on Q&A on Monday night.
Mr. Hoekstra said he feared that Mr. Mohammed and his accused co-conspirators would try to make the trial "a circus" and "use it as a platform to push their ideology".
