...for example: the way to detect Dyson spheres (or rings) is using a highly sensitive IR scope. Should the SETI community abandon radio and start putting their meager funds into IR scopes? Or just wait for the astronomers to find them, if they are there. Frankly, I think that anyone who can build a Dyson sphere probably can generate all the energy they want through other means anyway. Don't ask me how.

I agree with you about the whiney SETI piece that started this dust-up. Remember how we envisioned life at the turn of the century from 30-40 years ago? How did that prediction come out? Now the author of this piece thinks we should figure out what a non-human species thousands of years more advanced than us is like, and then search for them based on our predictions. We should also invest in tachyon telescopes, I guess.