I have a FT tag and an AA EXP 1MM on my carry-on and laptop bags. In the two years I've had the FT tags on, I've only received 3 comments. One was from someone who often lurks on the site, another from an existing FT member, and another from someone who was curious as to what the tag was for. I fly quite a bit, and am kind of surprised that I've only had a few comments. But it's neat to see if anyone will recognize the tags.