I couldn't live with white walls as they seem cold to me. I'm not a fan of most neutrals either. Fortunately DH agrees! We once painted a lovely bright, south-facing bedroom in a greige colour (think it was Farrow & Ball) and it absolutely sucked the life out of the space. We quickly repainted it in Craig & Rose French Turquoise which looked beautiful. I also don't subscribe to the view that a dark space should be painted in a light colour as leaning into the dark often works better.
I didn't see the 'blue' thread, but I don't agree that blues are all cold - deep, saturated blues can be warm/cosy imo. We currently have F&B De Nimes in our bedroom and F&B Vardo in another bedroom (currently used as a TV room), although ultimately that room will have a deep turquoise Art Nouveau style wallpaper. We also plan to have half-height blue panelling (possibly Edward Bulmer Garter Blue) with wallpaper above in our lootility. Our front door is Little Greene Tea with Florence (another - greeny - blue). Previously we've used F&B Inchyra Blue, Oval Room Blue and Stiffkey Blue, so you can safely assume we like blue!
Our little cottage isn't all blue, though - it's a project that's not finished yet, but currently we have a kitchen colour-drenched in Edward Bulmer Pompadour, our snug is also colour-drenched (Edward Bulmer Nicaragua) and bedroom 3 is F&B Yeabridge Green (colour-drenched again!).
We love deep, saturated colours and have plans for a Georgian yellow sitting room too. And Abigail Edwards Briar Owl wallpaper in green/gold in the shower room (we had this in the guest room at our last house and I love it!). Our love of colour and pattern doesn't stop with the walls - we have colourful, patterned textiles, rugs and art everywhere, but I find it easier to relax in a maximal space than a minimal one.
I'm also a William Morris fan (we collect Arts & Crafts and Art Nouveau stuff, although sadly sold much of it when we downsized) and usually manage to fit some of his wallpapers in somewhere. This 200+ year old cottage had 1970s Morris wallpaper in the hall, but unfortunately the damp caused by the ignorant previous owner using gypsum plaster had ruined much of it, so it's had to be sacrificed ☹️