I think it depends on your expectations in a man, if you are ok with it I don't see it being a problem. Personally I prefer a man with a bit more get up and go.
At least he doesnt smoke it all day though!
I'm sure he is and she obviously likes him but someone who smokes every night aint gonna change and she's going to get bored with him sooner or later. I wouldn't be worried though,are you concerned that she is going to get into some druggy world or something? What are the alarm bells about if you say he's a nice guy?
my boyfriend used to do it very often and it made him so paranoid it nearly ruined our relationship, if she's not been with him very long and he starts getting paranoid tell her to get out because it was so hard to deal with and if me and my boyfriend hadn't been going out so long beforehand don't think we would have been able to get through it
Could lead to Mental Health problems in the future, including severe bouts of Paranoia and possibly depression. He'll probably be complacent about most things, so yes, I'd say it should ring alarm bells.
If you, sorry, she can find anyone anywhere who has successfully and truthfully improved thier lot through smoking this abominable stuff, then y, sorry she could form a honest answer to this question... and then stop herself making the wrong decision. She could also if she wished join him in his endeavour to find squallor in life, ( the easy way?) stand by for the floodgates to open now....