Where did I say they don't read feedback? They do and then someone has to sort through them and add them to a database and pass on any technical information necessary. But opinions and "logic" on why the iPhone should have MMS, it is essential, all other cell phones have it, the workarounds don't work, etc., fall into the area of policy and that is going to get trimmed and not passed on as it really is irrelevant.
I'm not clear on why you are mentioning that email is older than MMS, I can't find anything where I said it wasn't. If you will search the threads for the post I was referring to it doesn't concern email.
I'm sure coming here today you probably are sure you came up with something brand new that nobody here, or at Apple, or AT&T has considered about MMS, and if you have please share it with us, but I sincerely doubt it. After 19 months of "MMS" posts we've seen it all.
Here is the link I was referring to:
http://www.macblogz.com/2009/01/20/att-playing-around-with-iphone-mms-possibilit y-wireless-network-caching/