I imagine we've all met folks on line who claim to be moderates but their views are basically far to the right, or far to the left. I don't mean your typical conservative or liberal, but someone who thinks Fox News is way too liberal or MSNBC is way too conservative. And they thing they are "maybe slightly left/right of center".
Of course, it's all relative to something, I suppose some polling midpoint of views. I've tried a few of these "tests" that purport to let me know what I think by asking what I think and reducing it to some two dimensional score. The questions in my view are bogus and silly, as are the options provided.
And of course a fair number of folks are liberal on social issues but more conservative on fiscal issues. That doesn't mean they are moderates, it means they are "bipolar" in a sense. I'm somewhat like that myself, at times, but not at others.