Internet Forums: An Outlet for Hidden Bigotry?

Let me start with the question: What does ‘discussion’ or ‘dialogue’ literally mean? The Greek word for ‘discussion’ is ‘συζήτηση’, which means ‘to seek together’. 
To seek together what? Obviously, the truth about a matter, what is wise, just and beneficial for all, or what is the best solution to a problem. 
Another Greek word for ‘discussion’ is ‘διάλογος’, a composite word formed by ‘δια’ (across) and ‘λόγος’ (logic). 
In other words, a healthy ‘discussion’ should be the exchange of logical arguments, opinions or beliefs, in order for two or more people to seek together the truth about an issue and, if possible, to agree on a course of action. 
In the ideal ‘διάλογος’ (dialogue), respectfully, unbiasedly and critically, two or more people exchange thoughts, verbally or in writing, so that they may help themselves and each other to get to the truth of a matter. 

My question now is whether the way most ‘discussion boards’ operate promotes reflective dialogue on various ideas and topics or if most of those ‘discussions’ have been reduced to a pitiful outlet of bone-breaking bigotry. From observation and personal experience, I am afraid the latter is the common practice, just as it usually happens with face-to-face discussions.
Let us see now what is the literal meaning of the English word ‘discussion’. The word comes from the Latin ‘discussus’, which is the past participle of the verb ‘discutio’ that means ‘to smash apart’, ‘to shake’, ‘to break up’.

It also means ‘to divide’, ‘to strike asunder’ and ‘to disperse’. Apparently, the term ‘discussion’ fits perfectly to what is usually happening in the ‘discussion forums’! Most people participate in those boards with the intention...