Basically anyone saying they know anything outside of teix or boras is full of crap.
Well, you have a point, but the clubs have their perspective too. To your point, however, anybody with the Nats who says the club has a 99% chance of signing Tex is smoking dope, or they have a severely flawed understanding of expected probabilities.

They don't know what Boras is thinking, only what he's saying. They dont' know what the Red Sox or any other team are thinking OR doing. So there are a lot of gaps in the knowledge this insider might have, that could skew the opinion.
Let's say for the minute that there is a very closely placed mole in the org who is talking to our Mainer. We can further assume he's giving the full truth as he believes it to be. That may reflect optimism on the club's part that they've put forth an offer that can't be refused, but we all know that s&^% happens. So I think it's fine for someone to bring forth what they hear, in fact I love the rumors, innuendo, gossip, whatever.

I mean, aside from Xmas shopping and looking for a job, what the hell else do I have to do?
But each reader can and should discount these reports as they deem appropriate.