A Question on "Online Appearance/Profile"

[arcticious.livejournal.com]

Hi there A_B, it has been a while since I last posted asking advice on taking commissions under the age of eighteen, and I just want to thank you all for your constructive and encouraging feedback! Since then I have talked it over with my parents and have made the decision to wait until I am eighteen, in which I can set up my own PayPal account, a new bank account, and will no longer have school to possibly cause troubles. Thank you so much for the input.

However, I had another question. I was recently browsing around the profiles of some highly popular artists who frequently take commissions, and noticed a few had very personal profiles... By this, I mean, swearing openly on their profile, slogans that could be taken as rude, and some that mentioned taking drugs/alcohol.
It got me thinking, what is the general opinion of these sorts of attitudes on a "professional" account? Is it unprofessional to feature swearing, alcohol/drug use or offhand attitudes on the same account you take commissions on? What do you feel when you see this sort of behaviour in a popular artist's profile, and does it turn you away from possibly commissioning them?
 
I imagined it being likened to a person swearing on shift in a job, however, online is very different, so I just wanted to know out of curiosity if that sort of behaviour effects your opinion of an artist's professionalism. 
Thank you in advance for any feedback!