In any game, the rules play a vital role. They are designed to make the game more enjoyable by eliminating controversy during the play. Thus, in any game the rules should be followed rigorously. Doing otherwise would not actually be playing the game -- it would be playing in a modified, less strict version.
"High-Scoring Scrabble Revised,"
Word Ways: Vol. 14
, Article 5.
Available at: http://digitalcommons.butler.edu/wordways/vol14/iss2/5