jphone: It is interesting how you continuously debate my arguments but then turn around and declare that my rebuttals do not concern you.
You are mistaken. The fact that Rav Dovid felt a need to pen a letter suggesting that nothing changed and attempted to rebut the main argument that would support the eruv (according to his father) proves that he was concerned with what was said by those who disagree with him.
Regarding this particular issue the only way that the public (including the rabbanim) can become familiar with the matter is through education. Over the years there has been much dissemination of the anti-eruv opinion but little from the opposing side. These mailings were designed to rectify this matter. In any case, I am happy to see that you are consistent and put everything in shaimos.