Another prime example of how creationists trying to talk about science, can't be taken seriously by those who actually have a basic understanding of science and its terminology.
The "it's just a theory" argument is such a PRATT that an entire web-page was put online just to make clear how silly that argument is.
www.notjustatheory.com
That site is, together with the FAQs on talk-origins, is probably one of the most linked sites on this forum in these discussions.
Another thing that is very frustrating to us, is that even after that site has been linked to dozens, hundreds, of times, the very people to whom it was address,
still continue to spread the same falsehood.
Yes, the dishonesty gets on our nerves. And rightfully so, I might add.
There comes a point where it can no longer be tolerated after a while.