I think it would be relevant to repost a link I first provided when I was discussing this topic with Just Being Real on a previous thread, starting at Message 395, in that thread he brought up the ID/SETI comparison and I linked to a short article by a SETI researcher on what he saw as the distinctions between the two.
The article is here. In it the author, Seth Shostak, makes several distinctions one being that rather than complexity what SETI is looking for is signs of artificiality in the signals they receive.
Why butt in here to be daft on a thread specifically intended to get away from generalized creationist stupidity and to just deal with SETI?
The title of the thread rather suggests that it is to do with SETI and ID along with comparisons between the two. JBR's post seems to be eminently on topic, however wrong, vague or incomprehensible he may be in his argumentation and conclusions.
No, look, the question is how can we detect intelligence among all the information we get from the stars.
That may be the only question you are interested in, but it is far from the only one that Straggler posed in his OP to which JBR was replying.
Someone talking about DNA is not addressing this question
JBR only spent half a sentence mentioning DNA after four paragraphs about how he thinks SETI should approach things. Are we to take it that you have no objections to the model he wishes to apply to SETI?