The King James Bible translators didn't hide God's Name in the New Testament Books, because when the Greek was used the original writers like Apostle Paul had to use the available Greek words for our Heavenly Father. I think that's why Paul went in detailed round-about ways in preaching about our Heavenly Father and His Son, so the pagan converts to Christ would know the difference from their traditions of Greek gods.
For one of Israel, to whom our Heavenly Father gave His oracles, they will know His Name if they are faithful and stay in His Word, and His Name is not "Yahwah", though that form is close. One has to know the Acrostics our Heavenly Father left in the Hebrew Old Testament manuscripts for His Name. Anything else is nothing but another traditon or fad of men, and their fad servants that have latched onto their doctrines.
Might also consider that just maybe, our Heavenly Father didn't want just anyone having access to His true Name without first going through Him.
I've seen this argument before, the idea that if we don't use His Name in original Hebrew, then He won't hear our prayers. That's a bunch of baloney. A believer knows Who they are praying to, and God knows also! How can I be so sure of that?
Well, there's a little event recorded in Acts 2 on Pentecost when Peter spoke to multitudes of peoples from several different countries that each had their own language. Everyone present heard him speak by The Holy Spirit cloven tongue in their very own dialect of language of birth. That means even the slang in their own languages, and that's the hardest part of any language to really master.
So in other words, The LORD knows HOW we speak and HOW we even hear! And per the Book of Zephaniah, He is going to return us ALL back to speaking the one language that was manifested prior to the tower of Babel event, or at least some pure form of that.
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That's actually a fine idea.