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Certain bans are very wide reaching—among other things—network bans. Some types of bans are a necessity in order to combat spammers, scammers and potentially illicit activity, and may be carried out by fully automated means which could be targeting multiple factors simultaneously.
Your previous posts were replied to and a potential solution was suggested. Spam and scam targeting tactics will not be discussed for obvious reasons.
FCN is a privately operated website, governed by the TOU you agree to when signing up and each time you log in to chat. As such, FCN will maintain integrity and control access however FCN, as a private entity, sees fit. Operations of protecting the broader userbase may, time to time, interfere with access for a small number of users. Live chat in this capacity is a unique animal and requires unique solutions.
Website is free to use and access control is discussed in the TOU in broad terms.
Contrary to a typical argument, these efforts are actually helping the Website grow.