The first rule of optimisation is don't do it.
I have to say something about this and I have been thinking of the response for several days now. Before posting anything! I have weighed the merit of not saying anything and I have consider the issue of starting an argument vs. just leaving things well enough alone.
I do not take insulting people lightly. This being said....
If you consider yourself to be an honest person then you should also consider posting the following notice on all software that which you plan to distribute in the future.
The notice should read as follows.
"This software will probably not work on your computer. Buyer beware!"
The same could be said of anyone who only tests their software on their favorite brand of hardware.