Sunday I wrote about the current Cirque show and our bad seats. I also sent them polite email expressing my disappointment and suggesting that they downgrade seats with obstructed views. (I figured the show was a sunk cost; I was trying to modify their future behavior.) I received an email reply asking me to call them, which I did today.
The person I spoke with said that the posts were indicated on the seating chart but that they're hard to see. On re-examination I can infer them from some "cut-outs" in the seating area, but I don't see anything that looks like "obstruction here" signals. He also referred to a 3D view, which I couldn't find a path to today. Perhaps it is only available during the seat-selection phase of a purchase; I don't know. He said they were unlikely to reclassify seats but he would look into clarifying the chart.
Nonetheless, he said, he wanted us to be able to see the show and offered free tickets to another show. They're only here for a few more days and the remaining dates don't work, so I declined that. At that point I thought he might offer a discount on their next show, or (on a really good day) a partial refund. What he actually did was to refund the base ticket price (he apologetically explained that he couldn't do anything about the service fee). He said that they want their customers to have a good experience. This is more than I expected and has repaired the negative feelings I had for them (though I'll still be wary about the seating chart in the future).
An aside: when I called their 800 number I was greeted with "blah blah blah... for service in English, press 2". This mono-lingual American is not used to being on the other side of that branch. :-)