While there is such a thing as being overly cautious, there is nothing wrong with expecting well defined logical rules.
Also this is an open forum, and while your free to glean some knowledge, as well as return the favor, others have no intention to do anything other than take. Therefore its users should be given every opportunity to protect themselves.
So if you feel the need to protect your assets... please do.
If you feel the need to share, again please do...with the knowledge that once you do, its very hard to take it back.