Is CV an appropriate place to ask such questions?
No, because the Stack Exchange platform has a policy that questions which seek primarily opinion-based answers are off-topic.
You can visit the help center page to learn more about which subjects are on topic in this community. I'd also like to recommend the following reading from the help center:
What types of questions should I avoid asking? An excerpt of it is:
You should only ask practical, answerable questions based on actual problems that you face. Chatty, open-ended questions diminish the usefulness of our site and push other questions off the front page.
About the second question:
Where else may these questions (e.g. how can I transfer to field of statistics from being an economist at xyz) be posed?
You can ask in the CV's chat room Ten Fold. However, there you will find a more informal environment and only a few users participating in relation to the main site.
