The Pro Football Hall of Fame has been criticized for many perceived injustices in the past. Defensive players are woefully under-represented. Offensive Linemen in particular have gotten the shaft in the voting process - despite making up nearly half the offensive players on the field at one time, there are nonetheless fewer than two offensive linemen in the hall of fame for each QB, RB, or WR. Kickers and Punters of course do not exist in the Hall even though special teams can have an unbelievably significant effect on the outcome of games, and even seasons, in the NFL.
But one injustice that often goes unnoticed is the Hall of Fame's questionable record in inducting wide receivers. First, compared to quarterbacks and running backs, wide receivers are under-represented - there are fewer receivers in the hall of fame than QBs or RBs, despite more wide receivers seeing the field at any given time than either QBs or RBs. I mean if you think about it there are always at least 2 Wide Receivers on the field, and for some teams you have as many as 4 on every down.
Stranger still is the relative number of wide receivers who played the bulk of their careers after the explosion of the passing game in 1978. There are just seven wide receivers from that era in the hall of fame (and two of them - Stallworth and Swann - built the majority their hall of fame resumes in the 70s), compared with 7 RBs and 8 QBs in that same era.