Mike,
It looks like you kind of stepped in it a little, the more you try and get it off of yourself the more it gets everywhere.
I wouldn't get too carried away arguing with some of these people about the concept of buoyancy compensators. You know what they say about arguing on the internet, even if you win you're still retarded.
If I were you I would just dive your rig and enjoy it. It appears that you are having a great time in the water and are not doing some extreme dives that would warrant getting into a whole different system. You are a new diver and nobody can expect you to have the experience yet to be able to have the understanding that some of the other people on this board have with hundreds or even thousands of dives, so when they poke a little fun about your rig I wouldn't worry about it too much. I really don't think any of them truelly mean you any harm, and then there are some that are just plain idiots, but I would just take all this with a grain of salt.
When I started diving I got programmed by my LDS to get into a Seaquest Black Diamond. I paid good money for the unit and I was darn proud of it. Whenever anybody started in about it I would fiercly defend my purchase. After getting 75 to 100 dives on it I began to see some of the pitfalls of such a BC. The thing is, when I was a new diver I wouldn't have known what a BP/W was if one fell from the sky and hit me in the head, they were not popular in the main stream at that time. It took many dives with the Black Diamond for me to slowly realize that it wasn'r really that great and frankly quite bulky and cumbersome. I remember one shore dive in particular in big surf, current, and kelp up in Sonoma County and really having a tough time in that unit, actually almost having to bail out of it and leave it behind just to save my skin. That's when I began to look around for a better way and decided to get into a BP/W system and since then I have taken the BP/W system into even a further direction and invented my own version that was more sleek and streamlined than the back plates and wings that everyone speaks of here.
You talk about getting bashed! Oh man! You getting a little ribbing about your i3 is nothing compared to what I had to endure. Long story short the concept never took off but the people that have one would only let go of it if you pryed it from their cold dead fingers. As far a simplicity there was no other rig that was simpler and more streamlined than the Freedom Plate but since it was not a conventional type of plate it was not DIR compliant and you could not attach doubles onto it, it became an object of ridicule.
My advice is to forget this board as far as feedback on your i3 and just go dive it. If at some point in the future, after you get many more dives, you see a need to get into a different system then get into something else. But if you love your rig and never see a need to switch then that's fine too.
Finally, let your own personal experiences be the teacher of weather the rig will work for you or not, not some blow hole on this board.
Eric