Are there any good ideas to improve one's coding / design skills significantly ?
There might be in the CRs you're mentionning. In other words, my advice would be to get the most out of those CRs as you can. Ask questions, encourage people to be critic with you, understand their point of view and learn. If you CR is rejected, get to the core of why it happened technically.
There might be in the CRs you're mentionning. In other words, my advice would be to get the most out of those CRs as you can. Ask questions, encourage people to be critic with you, understand their point of view and learn. If you CR is rejected, get to the core of why it happened technically.