Record Frequency of Getting Plunked

41-year-old Craig Biggio is S-L-owwwwly approaching the all-time record for times being hit by a pitch in a career. After getting hit 282 times in his first 19 years, he's only taken one not-so-free pass in the first 47 games this year (maybe old bodies don't take the bruising as well). He now stand 4 away from the all-time record of 287 by Hughie Jennings. Because Jennings played mostly before 1900, many already consider Biggio the leader of "modern" major league baseball, having passed Don Bylor a couple of years ago. But I've read recently that 1893 (when moder rules of pitching were implemented) is a better marker of the start of the modern period, in which case most of Jennings career would qualify. Anyway, I was wondering who has been hit most often, based on Plate appearances per HBP (hit by pitch) here is the top ten among those with 90+ career HBP. (How's this for a totally useless list?)

19.43 PA/HBP Hughie Jennings 287 HBP, 5576 PA, 1891-1903
25.34 PA/HBP Ron Hunt 243 HBP, 6158 PA, 1963-1974
25.68 PA/HBP Craig Wilson 90 HBP, 2311 PA 2001-present
26.29 PA/HBP Dan McGann 230 HBP, 6047 PA 1896-1908
26.64 PA/HBP Tommy Tucker 272 HBP, 7247 PA 1887-1899
27.68 PA/HBP Jason LaRue 94 HBP, 2602 PA 1999-present
28.55 PA/HBP Curt Welch 173 HBP, 4939 PA 1884-1893
30.20 PA/HBP Fernando Vina 157 HBP, 4742 PA 1993-2004
31.91 PA/HBP Jason Kendall 212 HBP, 6764 PA 1996-present
31.95 PA/HBP Kid Elberfeld 165 HBP, 5272 PA 1898-1914

and the next 5 highest from the "modern" era (1900 on)
35.07 PA/HBP Steve Evans 111 HBP, 3893 PA 1908-1915
35.21 PA/HBP Don Baylor 267 HBP, 9401 PA 1970-1988
36.29 PA/HBP David Eckstein 109 HBP, 3956 PA 2001-present
37.57 PA/HBP Doc Gessler 92 HBP, 3456 PA 1903-1911
39.87 PA/HBP Minnie Minoso 192 HBP, 7656 PA 1949-1964, etc.

What to make of it? Since the average player might average only a few HBP per 500 or so AB, the reasons these players stand out are likely 2: Big threats like Don Baylor, Frank Robinson (8th all-time with 198 HBP), Andres Galarraga (178 HBP) and Carlos Delgado (150 and counting) get crowded a lot, but to keep from giving the pitcher an advantage there, instead of bailing out they hold their ground and take a freebie. Also, tending to be bigger and slower, they naturally get hit more. Others, like Hunt and Eckstein and Biggio, are scrappy players with a "whatever it takes to get on" attitude who perfect the art of spinning INTO a pitch and getting nicked (it counts even if it just hits the uniform) without making it look TOO obvious (the rules say the batter is obliged to TRY to get out of the way, but when was that last enforced?) Anyway, that's the end of this earth-shattering, totally waste-of-time analysis of a freaky stat.