Using netcat, ssh-chat, talk or IRC etc

What is your opinion on using using netcat, ssh-chat, talk or IRC etc. in linux using tor as shown in the following videos :-

Host a Deep Web IRC Server for More Anonymous Chatting Online [Tutorial] - YouTube

Securely Chatting Anonymously over internet || SSH-CHAT || #Crazily_FOSS - YouTube

How to Chat in a Linux Terminal (with the talk command) - YouTube