From Tunbridge Wells - I feel that the focus on baggage tags is something of a smoke screen. A baggage tag can not bully or intimidate, it is just a tag whatever colour it is, likewise a pen. The inference a person places on the tag is a different matter and that is personal choice. You can choose to be bothered by them, or not!
To a certain extent, I agree. However, on a long trip you can feel very isolated if you are singled out as not been part of the Bedfont club - much easier to cope with on EF I would imagine, given the time frames. That is what these outward symbols do - marginalise and isolate.
The majority of crew would find it difficult I suspect - every one has their own reaction. Some have even requested or have moved base.