Yeah could be out of date or perhaps she just didn't fully fill them in to begin with? I'm not sure if those attributes not completed would still show on a profile or show a default position.
Smoking could be social smoking, a lot of people who smoke only when drinking with friends wouldn't put that they're smokers. Drugs again you can hang around with people who take drugs and not do yoursef. More to the point, why would anyone in their right minds, particularly who have kids, openly admit to taking drugs on an online profile?! It's crazy to me.
Some things can never be deleted, a lot of people would consider how their drug taking, sexual practices, drinking, smoking etc would look to other people who knew her and her kids.