I’m all for stickers, and more generally, any modifications or personalisation of vehicles that don’t have an impact on safety. Too many bland euroboxes on the roads, and there’s a weird snootiness (demonstrated occasionally in this thread) that looks down on people who like to demonstrate a bit of individuality via their vehicles. Stickers etc can be both entertaining and informative about the driver. Sometimes not in the way intended, but that’s by the by, and useful too…
I have a small ‘built not bought’ sticker on the back on my labour of love landy.