How glitch text works
Glitch and "zalgo" text is ordinary text with Unicode combining marks stacked above, through and below each letter, characters meant for accents and diacritics, piled up until the line looks corrupted. Other styles swap letters for look-alike characters, strike through them or turn the whole line upside down.
Because heavily stacked marks can break layouts and are hard for screen readers, the generator limits how many marks each letter gets and how long the output can be. Use glitched text sparingly in usernames and posts, and keep important information readable.