What disillusioned me most when I was a Witness was the fact that all those who made the 'rules', the GB members, the CO's, the DO's, the Bethel heavies, had absolutely NO idea what the average Witness had to deal with on a daily basis. We were told we had to read 3 or 4 magazines a month, daily text, Bible every day, in addition to service every week, plus giving up at least two evenings and one morning each day for the meetings. Oh, and don't forget preparing for all those meetings. Of course, the people telling us to do all that didn't have to worry about paying the bills, or much of anything else for that matter.
A few JW's have let me know that they are not happy with the recent crackdown on college/university. The blokes making the decisions in the org have absolutely no idea (or do not care) that going to college is a necessary fact of life for many, if not most students today.
I was constantly disillusioned by the constant complaining done by all the higher-ups in the org. Nothing is ever good enough. If we weren't going out in the field enough, we were criticized. If we weren't conducting enough studies, we were criticized. If we showed up late for the meeting, we were criticized. If we wanted to better ourselves and go get and education, we were REALLY criticized.
Most JW's I know today fall into two categories: 1) JW die-hards, and 2) floaters.
The die-hards will keep the org going for the next 100 years. Only rarely does one of the die-hards see the light about the org.
The floaters, on the other hand, really don't care anymore. Their bodies may still be in the org, but their hearts left long ago. The floaters have found that the only way to survive in this religion is to 'tune it all out'. They may still attend, go in the field service, and some of them may even be MS's and elders. But they don't really give a tinker's dam about the newest WT article or the offer for the month. They couldn't tell you what last year's assembly releases were. The floaters have nearly quit donating, too. Many of these floaters may never leave the org completely, due to family ties. But I see a greater percentage of JW's 'joining their ranks', to quote a phrase from the WT, over the next several years.
People are disillusioned with the constant carping of the WT, and they're learning to tune it out.