They do this as part of their effort to keep those that are still celibate from ever breaking from the stagnation of celibacy. They feel that it will push the affected ones to do more in field circus, free them to go to Nigeria where they can push membership past 7 million, and "do more than themselves plus kids" (which should send them back to kindergarten to learn math from the ground up).
If "All Scripture is Inspired and Beneficial", then wouldn't that scripture at 1Thess 4:11 apply? That one is the one that tells people to mind their own damn business! If that isn't enough, they should re-read the Puketower of 10/15/1989 study articles (remember, they insist on their own material). This crap about gossip is right in that magazine! It was the one about hurtful gossip and slander, and how we should stay clear of it.
And that's just within their own sources! Common sense dictates that, if there is no problem, why create one? Why create a problem for someone that wants attention from the opposite sex (and who doesn't) and is having enough difficulty as it is? There is no way I am ever going to support Jehovah's Witlesses, ever again--and if they try to force me back, I will do all I can to ruin the whole territory so no one ever comes to the door and takes anything again!