I don't think so. When you are drawing a poster, you don't necessarily think in terms of security. Most people drawing a poster are graphics designer, not security researcher. You think in terms of readability, convenience and esthetics. I don't think most people check the URL under a QR Code before flashing anyway.
Since most people don't type URLs themselves and can scan a QR code, it might not even occur to you that having the URL in plain text can be useful. It also takes space and it's not necessarily pretty.
(I do put the URL when making a visual with a QR Code, and require the URL to be there if I'm involved but not making the visual)
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I don't think so. When you are drawing a poster, you don't necessarily think in terms of security. Most people drawing a poster are graphics designer, not security researcher. You think in terms of readability, convenience and esthetics. I don't think most people check the URL under a QR Code before flashing anyway.
Since most people don't type URLs themselves and can scan a QR code, it might not even occur to you that having the URL in plain text can be useful. It also takes space and it's not necessarily pretty.
(I do put the URL when making a visual with a QR Code, and require the URL to be there if I'm involved but not making the visual)