There is no limit whatsoever these sad clowns will do if we let them. They can make any laws and when they are not convenient, change them, amend them, or just act irrespective of them. The less people resist this fuckery, the easier it is for them to continue. The first point of realization would be to realize that any use of force or threat thereof, towards your freedom, is a crime. On their part, not yours.
I am strongly supportive of Busoni fighting any such lawsuit, and hopefully establishing a precedent which expands liberty to contract, at least in the jurisdiction of the federal district court of Montana.
I will even voluntarily contribute to his legal fund, should that become needful.
It is not a present danger, so I need take no action until and unless a lawsuit is actually filed.
However, I am not supportive to the level of leaving funds on deposit, if such a case should go to trial. At that time I would cease trading on Poloniex, with great sadness.
Meanwhile, I consider that my first (Mt.Gox-informed) knee-jerk reaction, to cease trading immediately, is immoderate, and unwarranted.
Even if the ICO is a direct violation of U.S. securities law (as I believe it to be - no lawyer, I, but married to one) it should create no significant threat of any action other than civil enforcement, and that should present no threat to my funds on deposit until some act of an appropriate court.
Please do not consider my intemperate, alarmist language as grounds to cease business with Poloniex. It is an exemplary business, and deserves our support. I personally continue to keep a portion of my XMR on deposit there for trading purposes.