I did some background checking, and found this is not your MO, allthough Blender’s forums were not the only one you tried this marketing campaign with, but they all seemed pretty recent, like you were dabbling with the idea.
I also saw many indications your company is not doing so well.
Let me tell you a story about an anti-virus software company I worked for called eAcceleration. aka eanthology.
They were started by a dot.com millionaire, and about 4 years ago, someone approved what was known as a drive-by download on one of the pages of the website, where if someone pressed a close button on a pop-up message, it would then download the software. The news spread like wildfire across the net, and every other AV program labeled them, (and many still do) as malware, or spyware.
So they stopped the drive-by downloads, and were not doing them when I worked there, but then they tried to hack google, and google pulled them when they found out. That hurt sales for another 6 months. After google allowed them back on, they started new billing practices, which according to their EULA was legal, but certainly overdrafted many of their customers accounts, and I found alarmingly unethical, in an obvious attempt to burn the customer, to accrue cash and survive.
Today, the customer support is top-notch, but expensive, and a good percentage is still used trying to patch up the unintended consequences of these actions. eAcceleration has accrued too much debt, and will never go public, (which is what the CEO really wanted), because they cannot learn from their mistakes.
Just because it is legal, does not make it ethical.
Believe you me, for the next decade, I will periodically run a google on your name, and respower, and see if I can find any complaints. I do it for many people and companies I have found unethical.
And some marketing advice… either pay the money for a trusted source, or do it yourself. Do not rely on affiliates, do not attempt to “hack google”, and certainly do not try bulk emailing. Look to see if maybe you can outsource for computational fluid dynamics companies, like Fluent. ( http://www.cfdreview.com/ on the right is a list of vendors of CFD programs) I know you have way too many chips and not nearly enough customers.
Best of luck to you and your brother, I know you are in a hard place, and are staring into the abyss, but please do not become a monster.
Renderplanet seems to have had some 1 post forum members talk about how great it is too, so perhaps they are not much better than your company. Either way, it would still be a year or two before I personally would need a renderfarm.