You have a business. Izumrud izooomrud requires money from you his money back from you, and if you refuse, he promises to give you black PR and destroy your business tell the truth. Is it a threat or what?
Fixed your mistakes.
And to answer your question.. well this could be seen as a threat. But a justified one.
"If you don't return my money, i tell the truth about you" is a threat. But this doesn't make it a 'bad one'.
Are you stuped or simply doing signature spam?
What is
stuped ? Is this something to eat ?