Sentence:  "[…] They talk of you as if you were Croesus—and I expect the beggars sponge on you unconscionably." And Vickers launched forth into a tirade very different from his <WSD>platform</WSD> utterances. He spoke with extreme contempt of the dense stupidity exhibited on all occasions by the working classes. 
Meaning of the word marked with <WSD> tags:  A raised stage from which speeches are made and on which musical and other performances are made.