1. True, but that is a given in this hobby. As to your original premise-- attempting to TELL a TD (who we don't know) to "make sure NOT to declare it as XYZ with Value N" is sure to result in MORE confusion, and probably the exact OPPOSITE of what you are asking since English is not usually their primary language.
2. Maybe...
3. No. Protecting yourself is priority #1. However there are ways to hint or be geographically vague.
We are now 31 posts deep in this thread. Sorry, but I fail to see any value other than a generic "be careful" that goes without saying.
My advice is to post a generic review, or have someone else do it on your behalf, in the TD's sub-forum with some vague notion of shipping-declaration issues. We can then put 2 and 2 together and hopefully garner some useful information out of this situation.