I accuse the Discovery Institute of using liberal tactics, and they are.
The whole premise of DI is to use PR and lawsuits to cram something into the field of science that doesn't belong there. And while they're at it, use the associated publicity to bring in donations to a non-profit organization in order to make a living while "making the world a better place". It's a nice scam.
That's exactly what Greenpeace, the Sierra Club, and innumerable other lefty organizations do for a living.