The newer word processors and international font setups might be incompatible with new/older hardware/software????
Just about the only times I've ever seen that symbol combination was in search FINDINGS (when I went to that particular website, I almost never saw anything out of place or ANY symbols at all).
Sometimes I see a webpage with text that overlays another paragraph and simply can't be read fully, so the "ae euro" sign might be that someone tweaked their computer with a specialized word processor or language/graphic set. Did the word "HUM" in QUOTES as used by their word processor cause the symbol to appear?.....graphics can be touchy (foreign ASCII?).
When I search my hungarian name, I see mostly hungarian language and usually symbols like that (never common symbols like +, = or $, etc.).
Why couldn't the author edit that symbol?...does it originate on our machines?
Maybe they have special $3,000 graphics cards and they don't realize that the web server and our computers are incompatible?