Often I'm lazy and just black out revealing information, like I did in my blog post about how British Gas can't understand my name (https://danq.me/it-is-only-q).
But sometimes I've done the same thing in other places and gone further, sometimes concealing "fun" messages. In my post about Halifax putting the wrong names on a letter to me (https://danq.me/halifax-dun-goofed), I changed my address to a message along the lines of "what, you think I'd put my actual address here, like it's my first day on the Internet" and then blurred that.
Incidentally, I think that one was the first times that anybody contacted me to say that they'd noticed the unblurrability of my images, but I've been using this approach for years!
But sometimes I've done the same thing in other places and gone further, sometimes concealing "fun" messages. In my post about Halifax putting the wrong names on a letter to me (https://danq.me/halifax-dun-goofed), I changed my address to a message along the lines of "what, you think I'd put my actual address here, like it's my first day on the Internet" and then blurred that.
Incidentally, I think that one was the first times that anybody contacted me to say that they'd noticed the unblurrability of my images, but I've been using this approach for years!