Autosave is an awful idea, making modifications to existing files, creating new files "in memory" that i throw away (i.e. not saving them at all) and of course

Autosave is an awful idea, making modifications to existing files, creating new files "in memory" that i throw away (i.e. not saving them at all) and of course making many modifications that i decide later to save under a different name are things i do all the time with all sorts of programs. If i want something to be stored in permanent storage i explicitly request that with the Save or Save As functionality. That is not to say that an autosave functionality is always useless, it can be useful -e.g.- for recovering from program failures, but not as a replacement for the explicit Save/Save As functionality.