The Pesukim in the Megillah We Say Out Loud Together: How and Why?

References the famous Rogatchover on Aseres Bnei Haman (Hashmotos to Arakhin p. 57 column 1 and

Klalei HaTorah V'Ha'Mitzvos vol. 2 p. 124).

A recording for the BHP daily Halachic Whatsapp group https://chat.whatsapp.com/Gz8rrxqRcfy9rMOXRLG6GS