I know this has been discussed to death before, but I just wanted to add my 2 cents as a newbie to drupal:
IMHO, it is absolutely unacceptable that drupal.org is the ONLY site I have ever encountered on the Internet which was unreadable until I changed my settings to accomodate it. Unbelievable. Astonishing. Breathtakingly arrogant.
I am astonished that these issues were raised last year, and yet nothing was ever done. Mind boggling.
And yes, it IS affecting the size of your user community. I came within an angstrom of dropping drupal as a contender, as there was no way I was going to choose a product that would make me go blind as I explored it. It was only due to my stubborness that I searched and eventually found the solution (which in my case involved removing the Bitstream Vera font).
When you are the only one out of 2 billion websites that utilizes solution "x", there are two possibilities:
a) You are smarter than 2 billion other very talented designers and developers.
b) You've made a mistake.
IMHO, the answer is 'b' -- you have made a mistake (something we all do all the time, of course), and it is costing you market share.
Now, back to my exploration. I'm curious whether drupal proves to be worth the incredible hassle it's been so far thanks to this font problem.
Regards,
Kenner
(And to everyone who plans on responding along the lines of "we don't hear many complaints, etc.," just remember these two things: a) Most people will NOT stick around long enough to complain, and b) it's 2,000,000,000 versus 1.)