By going totally inactive you do pop up a bit more on their radar as a target for shepherding, so that MAY be a reason to turn in token time.
One obscure reason in favor of going totally inactive is it starts the clock ticking towards when the elders are allowed to not pursue judicial action against you. This is particularly true if you've moved to a new area. There's not a set number of years, but in practice it's usually around 3-5 years. After that, if some JW from the area you previously lived in sees Xmas lights hanging on your home and tattles on you, the elders have no obligation to hunt you down for a JC.
If you were a particularly "high-profile" JW, (ex CO, DO, Uber-Elder, etc.) they may still come after you anyway.
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