Rehashing this over and over again isn't going to make a solution present itself any faster (not directed at you, just speaking in general).
A significant number of they people doing it (and I'm not sure they even know who they are) are not trying to solve anything. They are rehashing the topic in order to spread FUD because they have already decided they don't like Monero for various reasons.
I'll reiterate that this does not mean I think Monero is perfect or that these problems are not serious or should be addressed. I'm speaking to motivation here, and why we see (and will see) the same points repeated and repeated and repeated with no new substance.
This is one of the reasons I haven't been posting as much recently.
Monero is the best anonymous system that we have at the moment, the people following Monero are mostly interested in a digital cryptocurrency that is untraceable. Our community has anonymity as our fundamental ideal.
Even if Zerocash worked and solved their infinite currency problem, I would stick with Monero for one reason; because I believe in this community, and if this community was presented with a superior technology to ring signatures, I am certain that a hard fork would be made and we would continue to be the dominant community built up around the idea of an anonymous CryptoCurrency. I believe we will change with the times, and it's that reason I support Monero.
The trouble is now we either have the silly dumb trolls posting lies about Monero or we have some intelligent members of the community posting the same argument over and over again hoping for the perfect currency to emerge and not supporting anything until this "ultimate" currency gets created.
Even if this ultimate coin that solves all the problems gets created, the Monero community is so strong I believe we would emulate that coin's strengths and become stronger ourselves.
I agree smooth, sometimes it feels pointless arguing here because the same invalid points are made again and again without any consideration for Monero itself advancing and the community reacting to new concepts.
I believe in Monero and this fantastic community.