You are not entitled to know.
Any business has the right to refuse service to anyone, within certain limitations in the US.
For example, if I run a hot dog stand and decide I will only sell hot dogs to people with red shirts, then you are going to have to be wearing a red shirt in order to buy a hot dog from me.
I can also decide that I just don't like you, and refuse service to you.
What I cannot do, if my business is a public accommodation, is to refuse service to you on the basis of certain personal characteristics.
People often fail to understand this principle. A recent public example is KY senate candidate Rand Paul asking why a business can refuse to allow people in with guns, but cannot discriminate on the basis of race. He argues that the right to have a gun is a Constitutional right, so why can a business discriminate against one and not the other?
What Rand Paul does not understand is that a person with a gun can put down the gun, go inside, and do business, and that "having a gun" is not an immutable personal characteristic. In other words, if you are white, you can put down the gun, go inside and do business. If you are Asian, you can put down the gun, go inside, and do business. However, if the sign says, "No Asians", then someone is going to have a hard time doing business there, because "Asian-ness" is not something the Asian can leave at the door.
There is, however, no law in the US against discriminating against assholes. You seem to have run into that problem with GoDaddy, who has made, in their sole discretion, the determination that you are one. This is too bad, because assholes do seem to be frequent targets of discrimination.