In 2012 "Masturbation" held the Local Needs part twice, it was a slow sinning year without any divorces or stealing from brothers in our Hall. The abuse a young man inflicts on his body by not controlling those biological urges defiles the marriage bed. One brother in his lack of tact said "What if a brother is not sexually satisfied with his wife, he might masturbate making his wife feel uncomfortable!" How is the wife going to find out her husband is masturbating? Why are these parts always slanted towards young men, the Watchtower is so uninformed they often pretend young or older women don't have any problems with this "Unwholesome activity".
I think it's strange once upon a time "Gay Sex" was not a big sin, not a sin a spouse was able to leave their mate over but if a boy or girl was to Masturbate, they might get excommunicated from the Organization! Only in a Cult does this take place.