I think calling Blippy the 'darling of silicon valley' is giving them way too much credit. They had a ton of publicity likely due to the huge rounds they were raising, and the controversy of the product - before even the controversy of their security flaw.

At the same time, isn't almost all of the service conducted via mobile apps, so the traffic likely wouldn't show up on Compete anyway (I could be wrong on that, somebody please correct me if I am).