No. If by the word "threads" you meant to write threats, yes, that is true. Threats are not acceptable. However, criticism, insults, disrespect for the verdict, disgust at the jurors and the expression of that disgust - those are all things that are just as fundamental Constitutional rights of all Americans as is the right to a trial by jury.
As I read somewhere this morning, "we have a system of law, not a system of justice." We are required to respect the process and accept the verdict. But we are not required to in any way agree with it or to agree that it represents a just conclusion. Nor are we required to suppress our outrage. The jury had the right to vote their consciences, God help them, but we have the right to find their verdict wrong, contemptible, disgusting, lacking in even a minimum of intellect, common sense and as some put, brain dust. And most important of all, we have, in our country, the right to express our opinion as often and as loudly as we choose.