I don't mind the negativity so much, there are certainly others who are worse.
For me it's the vagueness and never actually saying anything definitive. We'll probably lose but we could win or draw if certain things fall into place, we'll probably stay up but there's always a danger of relegation with an outside chance of play-offs.
Anybody can do that, although admittedly it takes intelligence to convince people that you're doing otherwise.
100% - and then, as others have suggested, calling out anyone who has made a prediction and got it wrong really does take the piss.