Something is thing of value. Nothing is thing of no value. (my terms).
Dollars in your bank account. i.e electronic money existing only as records in some obscure database, are nothing and thing of no value according to your logic, right? If so, could you please transfer all these things of no value to my bank account?
Did you even read the thread? I have explained to you already why dollars are valuable.
Fact is: you cant say why bitcoin is valuable because a bitcoin you transferred to me HAS!!! no value. Water has value. Food has value. Nobody will discuss this. Sometimes it costs more (desert) sometimes less (rainforest). But it has VALUE!
Now Bitcoin? Its NOTHING and you know it! Thats why you are saying: Look at the dollar, it has not value too (which is incorrect).
Its like the fat boy saying: Yes I am fat but other boys are fat too, so its ok.
You say: The dollar has 0 value so it is ok that bitcoin also have 0 value.
Its not ok. And your comparison is false as dollars have value.