Dear CalebInFlorida, you are totally entitled to your opinion. I make no judgement on your sense of being Jewish, as I make no claims to completely follow ancient laws written down by Moses. I used the connotation of superstition that means "belief" and not "fallacy". Others here may call such belief just that a "fallacy" to me they are traditions and customs, which are expansions and exaggerations of the precepts found in the Torah. Fundamentalist Jewish belief can be just as fanatical as Medieval Crusaders' who went slaying anyone who wasn't a Pope follower, both Eastern Orthodox Christian and Muslim cities were equally seiged, stormed and pillaged, the Jews were always found themselves caught in the middle and persecuted by all.
It amazes, it shocks me, how a Jew can excuse his murdering of a fellow Jew, a public figure like Yitzak Rabin. It appalls me that some Jews in Israel would opt to exterminate the Palestinians altogether, a Palestinian ethnic cleansing. Have we not learned from our experience as a people?
I have no problem in calling Kabbalism and Gematria superstitions, they should be called what they are, just like a religion that acts in cultish ways should be called a cult. And in my opinion that's what the JW religion actually is. As Oubliette likes to reminds us "Let's review: It's a cult!" Let's call it what it is.
Being descended from Sephardim I've also found prejudice from East European background Jews. They consider themselves more "Jewish" more deserving of belonging to the ethnic name, even secular Ashkenazi Jews show a propensity to look down on Sephardim. That's a very sad and very true fact of modern life in the Jewish State of Israel.
The Sephardim aren't alone in being ostracised. Karaite, Ethiopian and Messianic Jews are all minorities that are sidelined by the Ashkenazi Jews who have more influence.
In Bible times there were many sects, Saducees, Pharisees, Essenes, etc. We are now realizing how the Masoretic text is not as faithful as the Septuagint translation thanks to the Dead Sea Scrolls, these predate any masoretic surviving text by a thousand years. The Dead Sea Scrolls support readings that are found in the Septuagint but read different in the Masoretic text. Also there are "lacunae" in the masoretic text that are preserved in the Septuagint and appear confirmed in recompiled Dead Sea Scroll fragments.
One interesting point you bring up is the big impact of Babylonian captivity had on the worship of the One God. Before the Babylonian exile, archaeology reveals that in the Holy Land there was rampant disregard for unique worship of the Lord God (YHWH). There have been idol figures from pre Babylonian Exile found in every Tel just about.
The worship of Baals and fertility goddesses was quite widespread during those times. It was then that many prophets of YHWH declared condemnation for such pagan practices and insisted on exclusive worship of the One God. The use of the tetragrammaton was very obvious as can be deduced from the Biblical narrative and from archaeological finds from that era.
Yet the archaeological record also brings to light that the returning Jews worshiped the One God more exclusively than their predecessors. It is during this time that Talmudic traditions became more ingrained in Jewish culture and persist till today. It is a constant dialog of commentary on what the Torah actually means. It is not Holy Writ. The Talmud is a product of cultural tradition without the claim of inspiration.
The command to abstain from pronouncing the name of the One God isn't found in the Torah, nor the Prophets, in fact the Psalms abound with the tetragrammaton. These psalms were meant to be sung out loud, sung for others to hear, to sing together, to use in communal worship, not just personal meditation.
I maintain that the restriction to pronounce the Divine Name is a later practice/belief (and I'll not use the word superstition to define it if it bothers you, for that I apologize) that wasn't present in Biblical times. This belief/practice was a later development, and can be traced to post-exilic times.
Please accept my apology if in any of my statements you felt insulted, it was never my intention. I wish you peace. Shalom.