Addendum.

The next day after writing up a saddened review on Yelp, the karaoke host from hipster karaoke sent an email out to his list saying it's the 2nd time in his life he's done a St. Patrick's Day show, and he's regretted it both times...

He also said that he's worried about the crowd, and from now on will stop advertising on his site, and just sending out emails to his list to announce shows, so people brought in over Yelp can't easily figure out when to come.

I wonder if this was independent of my two-star (out of a possible five) Yelp review.