[tsigo]

Probably not, but one scenario which might make a difference is if the language used is disclosed to users. Fans of that language might hold up that site as an example of "See what this language can do?!", which might attract other fans of the language to the site who might otherwise not visit. See Twitter in the early days as an example (both good and bad) of Ruby/Rails, which brought a technical crowd to the site, who are great early adopters.