This is such a terrible situation for a human being to find himself in that not only Conservative rabbis, but all decent- minded rabbis, make every effort to obviate the situation. The first mishnah of Chapter Four, which we shall be reaching very soon, will give us an opportunity to discuss this matter at length. I hope this suffices until then. I am not familiar with the translation that ART refers to. After all, a similar argument could be made regarding adoption - at least in AID the child knows who one parent is.
Adoption is a great mitzvah.
There is no halakhah that requires an adopted child to remain ignorant of the identity of his or her biological parents. If he grants the servant manumission his son has become a free man. Luckily for us this last mishnah of Chapter Three continues the discussion concerning mamzerim. In my explanations yesterday I wrote that one of the consequences of mamzerut is that the offspring are also mamzerim 'in perpetuum'. In our present mishnah Rabbi Tarfon suggests an interesting 'trick' by which the passing on of mamzerut from generation to generation could be stopped.