Don't you think it's equally necessary for that voice to ring true? If nobody knows if you're actually making a verifiable point or just making things up fishing for a rise, after awhile that voice is just noise.
You might think so if you just look at what appears on the surface, but this "discussion" really isn't a discussion. It's really just a game of "the dozens", and "facts" are not the most important aspect of it.
Now sure, if we were having a real debate with open minds, then accuracy becomes more important, but in these mindless pushing games it is not essential to dot your "I"s or cross your "t"s. Nobody really cares if your point is accurate anyways because their minds are made up.
Absolute accuracy is just used as one more quibble, rather than a essential ingredient. I see very little of it coming from the other side, so I feel no moral compunction to insist on it for myself. Why bother? People are just making up bullshit anyways.