Some on this thread have spoken of "non-professional" look. As with fashion, the web changes style every some years. The bullets (red little balls with a little shadow) look very old, as the logo (on this thread page the logo appears twice at top. Stay simple, learn from Google search page, change very little at a time. The old army of followers will get accustomed without noticing. I would not like a massive change, the present structure is robust, well moderated, with rich, extraordinary content. As to colors, personally I do not like purple, a choice of colors and fonts size from a css would be great for those who care, without changing anything for the larger public of old-timers.