The question then is what will this data be used for if it is not usable/used for its intended purpose? I can think of nothing good, and this is the reason for those rights in the first place. To prevent tyranny.
Regardless even if billion year old civilizations do exist, as posted above, there may well be hard physical limits on expansion due c etc. And just listening for radio evidence is unlikely, both due to distance, and the fact that out own radio window (and any other species) is likely to be short. already more and more of our radio transmissions are low power and directed. This will only continue, reducing our emissions, Listening for any leakage from a great distance is akin to trying to smell a fart in a hurricane.
Now, kindly pay your taxes, drink a case of beast and watch the football game. Thank you!
Any circuit design must contain at least one part which is obsolete, two parts which are unobtainable, and three parts which are still under development.