4. Should I reply to every one who reply to my post? ( 4th number add now because I think this is compulsory question)
Of all that you have said @OP, this is the only one I think you shouldn't do as, it would result in a cloudy thread with needless comments and as such, you tend to spam the forum and I'm very sure you won't want that because, it opens a one door exit for you and your gone, just like that. You can reply to comments but, it's only when you feel it's entirely necessary that you should or should it be that, you were given some directives perhaps as questions that you should and again, if your touched by a comment and you have to make emphasis. Otherwise, it's unwise to reply to every comment on a thread.