1. If we speak "Yeah, much better this time.." It is fine. If we write a sentence like this, it is no subject for youe sentence. right?
Threre is no subject in your sentence
2. By the way, could you tell me what smartiecat is
By the way, could you tell me who smartiecat is.
3. Although most of friends agree with your style of wrting, (but) I still insist on my point of view. Otherwise, (then) English is not English any more if everybody writes it like this.
Although most friends agree with your style of wrting, I still insist on my point of view. Otherwise, English is not English any more if everybody writes like this.
This last sentence still does not feel good. But grammatically, I think it should be OK.