I'm fine with anything really, since everyone is entitled to their own opinions and creativity. I generally lean towards more realistic colors on my own characters however, and I don't get bored with the limited realistic shades really, since I like to see what I can make with them that is both elegant and flows well. The only thing I hate it bright orange foxes... I mean really? Bright, neon orange foxes, and you're calling yourself realistic? Naw... Just kidding x3 I don't hate them, just dislike them, and there's a few other realistic species I often see misinterpreted. Anyhoo, down to the point; Realistic, yes. Neon, no.
I'm really in the middle, myself. I have a dark gray character with black markings, so I wouldn't call it 'realistic' or 'unrealistic'. I don't often care what people do to their characters, it doesn't bug me. Hey, if we have this freedom with character creating, why not use it?
This is just my opinion, haha. I believe that people should be allowed to make their characters how they want. Even though I don't adore the neons, I don't hate on them. I like my dark-pelted characters, and yes, sometimes they may have brighter markings, however not normally. This is just what I think! C: