Yeah, it’s really not a great idea to score before the boundaries are closed. Technically unclosed areas aren’t points, so if you pass with those on the board, you are basically conceding them.
At one point I was finding people who don’t resign quite irritating, and I would look here Got Stats? to see what their resign vs go-to-scoring ratio is, and not play people who don’t resign.
I got a bit more relaxed about it after a while though 