GM, what's this?

GM, what's this?

i've never understood how that shit works but it's some browser utf8 text rendering madness.
i could be misremembering but possibly at one time that could be part of a remote execution exploit.
I thought it was a glitch in the Nostrix but still see it.
i've seen this shit being used since at least 2004.
r̷̛̮̗͉̘͔̈́̏̚͝ë̸̫̤̻̯̟̅͛͆̚g̶̛̯̘̯̩̙̀̈͗͊ā̴̧̼͎͈̪͐͋͐̕ŗ̵̣̙̳̣̾͗̿̅͠d̵͚̫̗̮͙͋͑͒͝͝s̸̡͕̺̺͈̓́͐́́ ̷̨̩̬̩̲̽̆͗̒̚ģ̸̦̳͎̲̈́̓̊̈́̌ǫ̸̙͇̲͓͊̋̀̂͠ǹ̸̫̯̺͚͍̂̇̄͝ṅ̵̬̱̳̺̻̌͒̄͝a̶̦̬̠̗̰̅̋̏̾̾ ̶̨̞̞̖̗̔͂͆̍̕r̴̡͈̞͙̥̋͛̃͂͝ȩ̷̛̱̤̱̠̃̑̄͘g̸̦͙̼͉̦͒̔͊̾̿a̵̧̛̖̙͚͚͋́͑̓r̴̜͕̺̲͍̂̐̋̏̂ḑ̵̖̱̱̭͆͛̒̐͌