I can speak to the selecting of who or who cannot attend a party. There is a marking process being used and rather than encouraging those who are not making their time or are sick/have a illness, or longterm nerve problems they are neglected and build animosity, yet still trying to hold on as they believe -rightly or wrongly - that this is Jehovahs organization and they have to make it to live.
There are many disappointments in life, and you choose to accept or reject them AC... the language you used initially was not appropriate for one who is in the "truth"... if you are for real your anger is most aggressive.. back off and let us know what the truth of your situation is..
I also too know of those in various baptized ones who do travel from cong to cong and "use" the sisters and brothers to get what they need, keep a smile on their face and suck the life out of people, then move to the next and repeat, never growing spiritually, people just accept them and shrug their shoulders.... but once bitten, twice shy -- you learn to spot them and you smile back and keep on trucking.... that's life --keep your money in your wallett and furniture in the house..... you just do not expect it from your spiritual family... unfortunately that is not going to change.. people are gullible and mostly want to help where they can.. it's a DNA thing..