Whatever way a person who's in a desperate and distressing situation feels is the best way for them to shout for help, is fine by me emilie.
If that's going into a pub and doing it, then they should expect help IMO (although I know it's not the best way and they're more likely to be ridiculed), if they want to post on an internet forum in the 'wrong' place, no-one should deny them that help.
Yes they might get the sharp edge of a posters tongue, but any contact can sometimes be better than none at all, someone's there and they're not invisible.
It's pedantic in the extreme to try and cut off any avenue of help to someone just because it's AIBU, whatever risk you think there might be. If they're at rock bottom it's better to talk, whoever it's to, than to sit in silence and stew about how your options have run out and you've nowhere else to turn.