I answered "Ruby" on the survey without question: in my case, it has significantly broader applicability than Erlang. In more general terms: no, I don't see th

I answered "Ruby" on the survey without question: in my case, it has significantly broader applicability than Erlang. In more general terms: no, I don't see this as a critical methodological error. Could it be "Pick your top n"? Sure, might be useful. Yet, I've never met a programmer who had trouble with "What's your [primary|favorite] language?", and the survey made it clear what to do in cases where more than one option applied: pick one, and don't worry too much. Survey design is always a balance between specificity and nuance, and I think in this case he made an OK call.