Reading through his replies, I think it's just the general pain of being a beat guy and getting the same question over and over again, especially at the WR position. I can't even begin to imagine what his mentions look like. He's repeatedly referenced that people want every single WR available, but then when that happens and they don't draft a guy, the FO gets reamed for that. He should definitely be more professional about it, but he does have a valid point. His mentions don't win either way.
Also probably important to mention that his interactions on there are with people that are generally more casual fans or ones that don't understand how roster building works.