@thatLarryRosen 2) back in the day UNIX/Linux terminals didn’t always support the backspace key and printed "^H" instead of deleting the previous character
@thatLarryRosen 3) as a nerdy form of epanorthosis one uses a sequence of "^H"s to indicate a replacement of one word for another
@thatLarryRosen 4) so just giving a nod to the previous (and, IMO, better) Twitter feature