Hi, hope this is the right forum -- my suggestions are theme-related but not related to any specific existing theme, rather to finding themes.
I noticed in a couple of comments elsewhere, people commented favorably on one theme or another having a serif font. That intrigued me because that's something I always look for in a theme -- I just strongly prefer serif fonts for text. Maybe "serif font" could be added as a feature filter in the Browse Themes function?
The other suggestion would probably be a lot more complicated, but do you think it might be possible to work up an "If you like __________, you might like __________, __________, __________" feature? Something like that would have helped a lot this week when I decided to switch one of my blogs from PressRow. I eventually found that Vigilance has basically everything I liked in PressRow, but it took a lot of trial and error to reach that conclusion.