Yes it can, but only when you're careless with your login details.
We have several webpages that are designed to look exactly like Bitcointalk if you're not vigilant enough to take note of the web url you might think it's the actual Bitcointalk forum and if you should try to login into the fake bttalk your login details might get stolen.
And it doesn't only apply to bttalk alone. There have been cases where users receive email containing phishing link and since most of them ain't acquainted with how to identify a phishing link it lead to them exposing some sensitive information that should have been kept private, for example Credit cards number, Wallet secret phrases, private key etc...
But just leaving your account idle without using it or exposing your login details I'm not sure if it'll be that easy for it to get hacked.
update:By searching "phishing quizzes site:Bitcointalk.org"
I was able to find this
[LEARN & EARN] Phishing Quizzes - Beginners & Experts (You should consider checking out that thread if you want learn how to identify and prevent a phishing attack.
~Valar~