man, this dude hurt from my feelings...
Don't let it.
The place is not a dump. This person obviously is going to some squeaky clean "venue" vs. an actual music club. Just think F St. (well, the person might be thinking about that venue and smell, but I digress) and know you set the tone and standard for everyone in this area who is trying to run an actual music nightclub. Birchmere learned probably from RHT and FSS learned from the local mall. Your ideas and clubs are not just bars, or karaoke clubs; they are clean, safe, friendly and always have a great artist on stage.
Sound and lights have always been stellar. Intimate places are few and far between for big name acts these days. Your club is still intimate, laid back and rock without being sterile and mass produced. Even with the modern additions of food, various beverages, multiple bars and
cupcakes. Chin up, Seth.
(and what Mankie said about kids and all ages!)
(edit: and Bags/Jags/Seth to thank for stall hooks!)