Well, I suppose I could toss my hat in here.
Names Paul, been in the reefing hobby for 8-9 years or so and boy has it had its ups and downs!
Started with a 29g and 120w PC lighting, a HOB skimmer and the knowledge from a couple of books, did I mention the canister filter? Yea...
About 8 months later I upgraded to a 46 gallon, same light (I did add a 150 MH eventually), same HOB skimmer (updated later), and same filter. Over the next few years this tank had both its ups and downs, nutrient spikes, low calc/alk, power-head falling off the side while away for a weekend and crashing the tank, you name it, it went wrong.
It was plain and simple for me a lack of knowledge.
One day I was standing there looking at the poor state of my 46g and said either "I tear you down now, or I learn what the heck I'm doing!" I went with it's time to learn what I'm doing.
I really started searching the internet at this point and that is when I discovered this sight and a local forum. I spent time on both but never registered. I read, and read and read, the forums were a wealth of knowledge, so much experience!
I upgraded my 46g to a 75g, sump, new better skimmer, lights, way more water flow, quality test kits, better salt, proper dousing, RO/DI unit, all around proper care for a reef tank.
The hobby became enjoyable at this point, I wasn't in a constant battle with my tank, I could properly maintain my tank and enjoy looking at it, not spend everyday trying to figure out what went wrong.
And now I'm at the point of a new upgrade! Moving in the next month and upgrading my 75 to a 180g! Oh boy!! I'm currently building my stand (using the DIY forum section here, I am no carpenter though!) and planning out my system. I will in the next few days be making a post about the equipment I have, my plans and ideas for the upgrade, and looking for some input and ideas for my build and move.
I figure I have rambled enough, so I will stop here