Joined: Mar. 2008
I see only one really good reason for engaging in the argument regarding design, and that is self-education.
Although there is a lot of repetition in the online debate, I find that the creationist quote mining occasionally brings up nuggets that I haven't encountered or don't fully understand. So I have to read about them. Sometimes this takes weeks or months. Sometimes there are layers of understanding.
The other aspect of self-education is learning to express the argument.
I see this as a win-win situation. Regardless of whether the onlookers learn anything, I do.
Any version of ID consistent with all the evidence is indistinguishable from evolution.