I think it is often safer than doing other things a poster could do when drunk, so I think the op should have at it without me actually feeling the need to engage with the poster. I have no urge to rescue anyone, but it does not bother me if someone chooses to post here rather than screw up their real life. I understand the usefulness of a drunken poster using pc to get stuff out rather than doing it in their real life. I do not understand those responding posters who continue to engage with such behavior or in attempts to rescue or reason with an op in such circumstances.
I personally tend to err on assuming it is useful for the op to post whether one believes the OP is actually or is faking being drunk.
Perhaps the powers that be could come up with a drunk trigger warning to put on such threads.