I have never heard of any JW's saying that it was OK, and that they DID salute the flag. In fact, it is quite the opposite. Part of their whole dogma, and rhetoric, is that they do NOT salute the flag.
It is looked at as a "badge of courage" of sorts. It is also looked at as a defining action, or non-action, that binds JW's together.
Most JW's have a certain unfounded "pride" in not saluting the flag. They feel it defines them as being the "chosen", by being no part of the "world".
Really, its basis is a common Cult tactic, where it creates an "US and Them", type attitude. These type of rules, and actions, being limited to ONLY JW's, further alienates the group from "main stream", and adds to the cult like nature that is the Org.
So, yeah, I find it very surprising to hear that JW's were denying they don't salute the flag. It is usually the exact opposite, unless you are a younger, school aged JW. Then you probably HATE that you have to be singled out in front of your peers. Its funny how this rule established by the GB, is one where most of the time, it would never affect them. They would almost never be put into a position of having to be singled out, and embarrassed by not saluting the flag. No, their rules apply to others, and effects the young ones mostly. Something that the GB are so removed from, and where their own rules would never be an issue to themselves, only others.