The only time I have seen acknowledging the booth is in Fringe Festival (Minnesota) performances, where the technician is running 4-5 shows, order, amount, etc... changing, everyday day for 10 days, other than that, there has been one production I have worked on where a crew bow was planned on, but that was cut, because we (the crew) had to be backstage and hold together a few platforms as the lead ran across them while changing dresses. Instead we, as a crew, in a circle took a bow together as the cast took theirs, and sung the last line of the curtain call, then ran to our appropriate stations to do house lights, and clean.