Insulting someone by calling them a liar is materially different from other insults

lol, I thank CON for playing along, and I do hope this proves to be constructive. Before I begin, because of the rules stated in round #1, I immediately move to dismiss any and all arguments, assertions, and conclusions that CON will proffer in this debate. This is because, as stated in round #1, CON is a liar, and so the truth value of any statement CON makes cannot be determined. There is no one to say otherwise, and as was specific in round #1, this debate is to be judged on the basis of Tabula Rasa, meaning that whatever is said in the debate is to be taken as prima facie true...except for anything CON says.In fact, if I were CON, I'd just forfeit the subsequent rounds; it is pointless for CON to spend any significant time forwarding an argument that cannot be taken as true. If CON does continue to argue, I will simply reassert this statement. Note that my statement simply restates #1 assumptions, and so is indisputable for the purposes of this debate.Now that that pleasant business is over...---Insults come in all flavors, from trivial, unrealistic statements like poopiehead to more serious charges like "you talk like a five-year-old". Many are simply expressions of frustration, spoken at the heat of the moment to convey the feelings of the one lobbing insults. Sometimes, they are calculated statements meant to incite...this easily fits the definition of trolling. All of them are attacks against the other party...any and all insults are ad hominem attacks by definition. They do not forward any arguments, and are wholly unconstructive to debating.Calling someone a liar is archetypal of the underlined. As anyone can see, the way this debate was set up, it's not a really a debate. It's simply me proffering a long-winded monologue, because CON is deemed a liar for the purposes of this debate, and thus any arguments CON may proffer cannot be validated. This is definitional, and in this debate, undebatable. Also note how by calling CON a liar, I've yet to forward any arguments that substantiate BoP for my position. Indeed, I've yet to actually forward a case at this point.So what is my case? Calling someone a liar is materially different from other insults, because other insults not questioning the validity of the other party's statements would allow for the other party to defend him/herself in whatever argumentative manner that person saw fit. Given the concept of Tabula Rasa which is more or less standard on this website given the unpredictability of the audience's background, it's not possible to argue against such a charge, because the other party's statements cannot be verified - for example, CON is incapable of defending herself if the charge of being a liar is taken at face value, which it is in this debate.Let's say CON brought in outside sources. Those sources could be verified for truth value, but not any statements, arguments, or conclusions CON would draw from them. Even if CON were to paraphrase or quote her sources, it would be the sources that are held valid, and not any statements CON would make referencing them. Why? Because CON is a liar, and truth value cannot be determined from her statements. Again, this is a round #1 assertion. CON simply cannot argue a position, because CON is a liar. What about other people vouching for CON? Any and all comments made outside of this debate hold no relevance to the matters within this debate. Therefore, other people vouching for CON also becomes impossible within the confines of this venue.Conclusion:Lying is a serious insult. It is different from other insults just like how AIDS is different from other diseases. It robs the ability of the inflicted from defending him/herself, and makes it exceptionally easy for even the weakest of arguments/diseases to prevail against the inflicted. AIDS is easily seen by many as the world's most deadliest disease; similarly, the charge of lying is the most serious of insults on this website, and should not be bantered about irresponsibly.