That's because more of the scientific threads posted on FR are about actual science, instead of evolution.
Here’s how these exchanges go:
Combatant #1: The “science” shows X. [scare quotes need to be sprinkled liberally].
Combatant #2: No, the science shows Not Y.
#1: Thank you for proving my point.
#2: You big dummy.
#1: You big dunderhead.
Why even start the “conversation”?
Thank you so much for letting me know that my chosen career is not in science, but in something else. Would you be so kind as to enlighten me as to what it is, exactly, that I actually do for a living? I mean, I'm constantly telling people that I'm a scientist. Since that cannot be true, I'd like to let them know what I really do for a living.
In reality, except for correcting gross mischaracterizations like the one I mentioned in an above post, I really don't care what you believe. If you genuinely believe that, somehow, a scientific theory invalidates religion, that is your belief. No amount of trying to persuade you otherwise is going to change that, and I honestly have no desire to try to dissuade you from that belief. The only real way your belief could have an effect on me is if, for some reason, religious fundamentalists took over in government and stopped funding any kind of research that acknowledges or uses the theory of evolution, or tried to force educators to teach biology as if the theory of evolution did not provide a central framework for understanding biology. Trying to force science to fit an ideology does not and cannot work. I see little chance of that happening (people support medical research far too strongly to let it be crippled like that); therefore, I have no interest in arguing with creationists.