We are already not allowed to use keywords as variables, this wouldn't change that.

I've never written a compiler, but I don't see how the last lines are harder to parse:

  if ( thisLooksAppealing )
  {
      youLikeCamelCase = true;
      votePoll( camelCaseFormatting );
  }
  else if ( this_looks_appealing )
  {
      you_like_underscores = true;
      vote_poll( underscore_formatting );
  }
  else if ( this looks appealing )
  {
      you like spaces = true;
      vote poll ( space formatting );
  }