There're basically 3 types of players: top quality who rarely make mistakes (too good to join us, or if they do, soon move on), decent players who are generally good but do make mistakes (e.g. Bednarek and Yoshi), and those who are crap (Hoedt). Errors of the latter tend to be seized on and the player vilified because they happen so often. I guess most (but not all) of us tend to be more forgiving of the middle group if they seem to be trying their best.
Players are also going to be slated if they seem to be lazy or obnoxious (whether true or not)! Bertie and Redmond were I think unfairly judged for their attitudes, but I think people were correct in regarding Hoedt as a ****.