I'm not into the law, and there might be differences in each country's legislation, but I'm concerned about this. Am I considered a co-worker of the services I advertise? If the authorities strive for shutting down one of these services in my signature and avatar, am I subjected to this activity as well? If the CEO of either ChipMixer or Betnomi (as examples) is proved to be guilty, am I guilty as well?
Asking a lawyer is probably a better idea, but I'm just curious if someone else had had the same concern before.
First, if you are advertising a service, you are being paid for it and you are not a co-worker.
Think of an example that you are a worker in a company. Later if the company do any fraud, the people working in the company won't be faced legal action, only the owner will be held responsible or the board of directors in case the company operate on that model.