I agree, as some have mentioned, that some of the phantoms might be spending some time on RBC work, disaster relief work, etc. However, such should not be reported as field service time. A lot of publishers, including elders, don't know how this is supposed to work, and as a result, time is wrongly reported as field service time.
Here's how it's supposed to work (unless there's been some change lately). Suppose a reg pio works on RBC projects for 60 hrs one month and spends 10 hrs in the ministry (or at least pretending to be in the ministry). He should only report 10 hrs for the ministry and he should inform the elders (mainly secretary) somehow (maybe noting on field service report form) that he spent 60 hrs on RBC work. If he did that all twelve months of the year, then at the end of the year he would only have 120 hrs on his card as actual ministry time but a note indicating 720 hrs credit. So if the elders felt the credit was legitimate, he would be considered to have fulfulled his hour requirement. However, he only reported 120 hrs in the ministry; the 720 hrs are a credit toward the 840 hr requirement.
Many actually report the RBC, etc. time as field service time; that's not right. Another example. Reg pios are given credit towards their hour requirement for attending Pioneer Service School. I forgot how many hours, but just say, for example, 50. Many actually report that 50 as field service time. They shouldn't. At the end of the year, if they hit the 840 hr mark exactly and did only actual field service and went to pioneer school, their cards would show 790 hrs actual time and 50 hrs credit.
So, it should be obvious, at least to elders, whether the phantoms are actually in the ministry or working on other projects.
Another point about this topic - in my area it is considered to be far easier to work on RBC projects, participate in disaster relief work, etc. than to go in field service. Some even live for the RBC projects and love disaster relief work. That kind of work can be exciting, interesting, and outright fun. That's not wrong in itself. However, the majority of those in my area who participate in such work do not support the ministry; they hate it. I recently saw a swarm of hard-hatted RBC workers on a kingdom hall site, and I remarked to my wife "how many would you see here if the project were to work in field service?".
Consider the following two options: #1 - You can go in your jeans to work on an RBC project or do disaster relief work. #2 - You can spend the same amount of time in a suit or dress in one of those dreadful, depressing field service territories where nobody's interested in the least and you're viewed as a cultish, lunatic, religious nut. The driveways are long and you're watched the whole time you're walking down them.
I believe that most of us here, if not all, would agree that if we were choosing just according to what would be the easiest, we'd choose #1. I would have preferred the #1 option all my years, but I chose #2 because my heart was in it and I really believed in it.
It seems to me that the ones the opening post referred to want the glory of being known as a sub CO couple and being reg pios, but they don't want to do the dirty work.
P.S. I have nothing against helping others through disaster relief, etc. I just want those who do it to be honest. If they're JWs I just wish they'd admit "hey, I'd far rather be doing this than going out in the ministry". I don't like the type who claim to be reg pios and who want the glory, but who don't do the dirty work - who look for creative ways to get time and not actually have to participate in the ministry.