I'm fine with the font size now that you've increased it, and thank you for that. I'm referring to the font face, and maybe it's not really a problem. Maybe it's just the yellow background. The choice of background color has nothing to do with the software or its history, does it? In other words, we're not stuck with yellow, are we?

I'm familiar with vbulletin. I installed it at work a few years ago. There are also other forum apps available, each with its strengths and weaknesses.