There are accumulating factors in how the WTS presents itself to the public.
The fronting information is of course a new and better world is about to come shortly,
where mankind will live in a Paradise here on earth......etc....etc.
The other part too is of course that wicked people who don't follow to what God expects and wants will be destroyed
prior to this wonderful Paradise to come.
The bible comes out and is used as a source of this information which brings a sense of validity to all what is said.
There are probably numerous needs that comes about in peoples minds when they confronted with JWS at their door,
some have personal problems that are inwardly known that JWS and the WTS. may present an answer to.
When a person is just studying the individual produces all kinds of attention at the Kingdom Hall,
the providable love bombing begins which brings a sense comfort and support and
the person starts to feel a sense of contentment and solace, a continuation of these feelings
is set in motion, which to the individual merits further investigation.