Hi JImmy,
firstly, dont feel like you are being a pain in the arse. This forum is here to help everyone, each other. Even if you dont get the same person helping you all the time, we are all here to help each other ( or at least I hope we are)
To answer your question, it depends on what sort of style you play I suppose. If you play lead guitar I think it would be handy to know individual notes but probably not essential.
I could not look at a fret board and tell you any note straight away, but it is easily worked out.
I learned what each note was on 6 strings for the first 5 frets, but now as I look at my fret board I can not tell you what every note is straight away, would take 10 seconds for some of them and others I know straight away.
If you are strumming straight chords it is not nescessary to know all note if any.
It is handy to know the notes up to the 5th fret to read chords such as D/C which would be a D chord and holding a C note, but even then you could sit and work out the note first,
so na, you dont need to memorise all notes
ken