It is a very simple proposition. Donations usually go up in organizations that are creating enough value to justify it. People will tend to donate according to how much value they actually get out of the organization, and if they are getting lots of value from it, there will tend to be a lot of donations. There will always be freeloaders, but generally if one is getting a lot of real value from an organization, they will donate more. And it will be easier to get them to all the sessions, and get new ones in. Milling around during the program will automatically go down, since they are getting more value by paying attention.
The flip side is, if the organization is not creating any real value, then people are going to stint. then it becomes necessary to use guilt and hounding to coerce more donations out of people. They then need to resort to fraud, such as setting up deficits on purpose so people will donate more at the end. And since there is no real value, people are going to be more inclined to blow it off or mill around, often creating disturbances, since there is no real opportunity cost in doing so. The "Quiet" signs then become necessary.
Eventually, they are going to get the donations they deserve. Since they are not creating any real value, people are not going to put any money in the box without the Tower initiating the use of force and fraud. And once the false promises wear off, people will not donate any more. I cannot blame people for this: My message to the Watchtower Society is simple. If you want your money to keep coming, then you are going to have to start creating value for those in attendance. Money will come in without initiating the use of fraud (the false promises and the artificial deficits) and force (that is, guilt). The side effect of this will be higher attendance, more people coming in without having to waste thousands and tens of thousands of hours per new recruit, people paying more attention, and less effect of these apostate Web sites. And, if the money comes in from creating value, it will keep coming as long as the value creation goes on.