Just wanted to bump this to say something.
Mike Wilner, Wednesday June 11th Blue Jays Talk, discussing the Struggles of J.P. Arencibia:
"Matt Wieters is in his 4 1/2th season in the MLB, and he's got an OBP of .301. He was the most highly touted catching prospect, maybe in history, so he still hasn't found the bat maybe everyone thought he was gonna find. He's, I think, uhh, the same age as JP, or maybe a year younger, sometimes it takes catchers a lot of time, sometimes it never happens." (sic) He then went on to talk about how JP hasn't necessarily peaked.
In 571 games in his major league career, spanning from his age 23 season to his age 27, Matt Wieters has a career OBP of .325, not .301, and a career wOBA of .324. He has also developed fairly quickly, putting up 4.7 fWAR and 3.9 fWAR the past two full seasons, his age 25 and 26 seasons. While obviously catchers do take slightly longer to develop, here is another example of Wilner talking out of his ass and bullshitting about stats, but using his baby-gloves tone of voice to make it seem unquestionably true.