I know that this is slightly off topic but ...
Any real Bible student must acknowledge that Christianity spread primarily during the first and second centuries though, what we would call 'incidental or informal witnessing' to friends and family. However seeing that all the ones coming into the Organization are counseled to abandon all their worldly associates as quickly as possible, trying to reconnect with them only to preach is only seen for what it really is. Thus the Governing Body, in their attempt to develop the 'us and them' mentality, has only precluded the only genuine form of proselytizing ... leaving instead, the formalistic (and hated by most) activity we see in congregations today.
Thus, though the deliberate decisions of the Governing Body, any hope of numerical growth will continue to diminish because they can not grasp the simple fact that people these days are more and more informed and savvy to ways of mass marketing corporations, and that people have now simply re-valued their own privacy.
People will always welcome friends to their doorstep anytime ... but not salesmen with a cookie cutter message, which is something that those in Warwick don't want to understand.