Oooo, Heaven, and 3MyGod - GOOD lists!!!
I'd say about the same thing - just state it a bit differently...
Joining the Jehovah's Witnesses - the Watchtower Society - will seriously and negatively affect your financial stability and financial future.
If you are earning a good wage, you will be expected to donate, donate, donate... You may even be asked to commit to a certain amount of money to be paid every month, especially if your local group of JWs happen to be building or refurbishing a Kingdom Hall...
If you are asked to work overtime at your job - with or without additional compensation - the elders in your congregation will imply that your extra effort at work makes you a "weak" Jehovah's Witness. If you are male, you will be urged to forget about the overtime or striving after professional advancement, or be penalized within the congregation by having 'privileges' withheld, like holding the microphone at the Sunday Watchtower study or passing out literature at the literature counter.
Any effort you put forward to advance yourself professionally will be viewed with suspicion - while at the same time, if you DO achieve professional advancement, with corresponding financial benefits, you will be EXPECTED to donate more, more, more to the Kingdom Hall...
It almost becomes a form of Papal "special compensation" - paying your hard-earned money to obtain a slightly lower level of disapproval from the elders and general membership at large...
Planning for your long-term financial future will also be viewed with suspicion, as it will indicate that you DON'T buy into one of the Watchtower Society's linchpin teachings - that "Armageddon" is "just around the corner", therefore you really shouldn't be "doubting Jehovah" by planning ahead, just in case...
If you have chldren, sending them to college will also be viewed with suspicion, for the same reasons as stated above. Additionally, your generous provision for your childrens' higher education and financial future will be viewed as a form of spiritual "child abuse", since you will be exposing them to "Satanic influences" ever-present in the college environment...
If you have children, you will be expected to allow them to die, rather than accept a blood transfusion - and at present, that would be a WHOLE-blood transfusion. Right now, there are several transfusion options available to the Jehovah's Witnesses; unfortunately, most may not be aware of the entire set of options... Also, based upon past Watchtower Society flip-flops, that stance may change in the near future; options presently available may become "un-Scriptural" in the near future, and without any real warning...
Those are the most compelling reasons I can think of, for a "worldly" person to avoid joining the Jehovah's Witnesses...
Zid