Plus, it's 2017! There are so many tools to do a semantic search and replace and replace all variables, parameters, etc. called "data" with, let's say, "__data_

Plus, it's 2017! There are so many tools to do a semantic search and replace and replace all variables, parameters, etc. called "data" with, let's say, "__data__". Why uglify the language instead of providing a migration tool like Python's 2to3?!