I give my sims a variety of traits. If it's going to be Evil or some other trait that I consider to be negative, I pre plan first. I usually have something specific in mind for them. I find these traits really make the game lots more fun.
I have avoided Socially Awkward trait for years because the one time I tried it was with a Sim that I wanted to become a romantic interest of Haley, one of my more wayward sims, and that Socially Awkward sim was a frustrating disaster so I stopped using that trait after just one negative experience. But I recently had a socially awkward townie interact with my sims and I thought that was hysterically funny so promptly added a new socially awkward sim to my household - if I don't have any plans for that sim other than general entertainment I'm sure he won't frustrate me and all will be good.
I also banned a hot headed sim for years as she picked fights with another sim in the household. Then one day I added her to another household and she hasn't been involved in any fights. I find evil sims are fun too. One of my sims in my Isla Paradiso Bunch videos is evil and her lifetime wish is the see the ghost of her wealthy spouse. She is in a large household and has plenty of free time. Consequently I'm finding her checking out all the new sims in town and finding out if they are wealthy or not. I find her antics very amusing. She's been in my videos for over 60 episodes, just in the background doing her own thing and so far she's not found anyone to marry but I still hold out hope for her - maybe.
I dislike the daredevil trait because I don't like seeing them eat dirt. But do have a few sims with that trait. I don't avoid it totally but do try to not actually see them eating their dirt.
Another thing I consider, sometimes, is the hidden traits. They have an influence over a sim's behaviour and that can add extra variety and fun.
