samwise: First, there has been a discussion about this...Dmitri King agrees with you, and so do a few others. However, if you do not like or agree with the game, do not play it. There are many people here who do not take their games very seriously, and will play a game with "illegal moves" and "incorrect rules". Also, i heard the larger 19x19 board does not load properly on web-tv, so now they can play Pente as well.
Reversi, halma and go are all played on different sized boards (although go is not supported here as of yet). I am aware that playing pente on a different sized board does not change anything like it does in those. Was just clarifying that there are games that are played on different sized boards.