>They are making the price of what you hold fall...they deserve to be sued good and hard for this.
That logic applies to a number of entities and not just brokers. If I can sue a broker for this reason, can I sue anyone for that reason?
I am not saying what the case is for brokers today, but regardless, appealing to some notion of proof by contradiction because of generalizing a behavior is not a valid way to analyze the situation.
I realize that. That previously quoted answer was in response to me asking "Does a broker have a legal obligation to allow you to purchase any stock?" Someone answered that with a broad response without referring to any laws. I'm not sure how that leaves me with a responsibility to do a full legal breakdown of the issue.