Interesting. I've been building a custom opening tree. I've been working on it for three months after deciding to learn queen's pawn openings, and I'm pretty close to getting a 13-move opening tree repertoire completed. I've been using current master's games and opening books. It's pretty rough. I'm going to check it by checking the lines, eliminating some, then playing and analyzing games. I generally work on learning the first eight moves first.
I'm continuing to study tactics and endgames.
... There is one issue where with every post you advocate by default that a chess player build his/her opening tree by hand. ...
I am not aware of having written anything one way or the other on this issue. It strikes me as unlikely that all beginners should run out and immediately buy Chessbase. It also strikes me as unlikely that all players should wait until after buying Chessbase to do any reading about openings. Beyond, that, I am, for the moment, content to leave people to assess your commentary for themselves. Had it not been for your posted claim about what I was advocating "by default", I would not have thought it necessary to make the comments I have made here.