Esse quam videri , as you have returned to this thread and aren't just another of those drive-by posters can I ask you if you have read this site: http://www.jwfacts.com/ ?
We can talk about our personal experiences and opinions 'til the cows come home but what really matters is facts.
If the JW's do have "The Truth" and are God's representatives on earth then it doesn't matter what anybody's opinion about birthdays or blood or any other subject are. If, on the other hand the JW religion does not have the truth, are deliberately misleading and even tell outright lies then none of their commands have any validity.
That's the crux of the matter and until you have the facts any other discussion is just gum flapping.