These stickers are very silly, and I peel them off as soon as they hand the passport to me.
Once the ITCS person asked me what I was doing while I peeled and scraped, so I remarked that I was cleaning my passport, and we had a brief discussion, but they don't seem to have any power to do anything about it.
Just another exotic feature of modern travel, to be added to:
- Indian baggage handlers cutting off any and all luggage tags;
- Stickers across the baggage locks in SE Asia;
- Shoe carnival socks and fashion parade by the TSA;
- Twenty questions with Mr. Security in FRA;
- The amazing Shrink-Wrap Machine for bags in MXP;
- so on...