Be careful what you copy: Invisibly inserting usernames into text
I did this (non-publicly) many years ago for my eve online alliance. A substantial problem exists in that forging the identity of _someone else_ is fairly easy in a naive scheme if someone detects these characters. That means you can sow chaos by blaming innocent folks. In practice you'll want to "sign" the inserted data as well.Also because of the overhead here and the fact that you will want the signature to occur at regular intervals a better compression scheme than 0=>char1 1=>char2 is needed. Combining zero width chars and homoglyph substitution* can produce codings which hold signed usernames in only a few characters.There are other, far more interesting ways, to watermark text than this that are both harder (to impossible) to detect that produce better results.*https://www.researchgate.net/publication/308044170_Content-p...P.S. It's nice to see people publish conference papers on this stuff. I always had to hide it because we actually used it.