The argument that YHWH was removed from the NT on purpose doesn't make a lot of sense, it smacks of conspiracy and just not that feesable considering the 1000's of scriptures we have.
Like it has been mentioned before, to accept that is to accept the view that the NT is NOT sacred or inspired.
I don't have issues with insering YHWH into passages from the OT that are prsnt in the NT, if the context calls for it, but to insert it randomly where the term "lord" is violates the rule of translation.
When we translate anythign we must use the source that is closest to the original source and to add to that is, well, unjustifiable without proof and right now, there doesn't seem to be much proof other than possible speculation.
To say that God allowed His Name to be removed in some parts, but kept alive in others and only be inserted randomly, well that is just a tad of a stretch.
A couple of facts we can't deny: Jesus told us to pray to Our Father, when Jesus prayed he used Father and Abba.
Jehovah is NOT the correct name of God or even the correct tranlation or pronunciation of YHWH.