> I don't think I will develop again without this feature.
That's a little dramatic, don't you think? Why don't you just take responsibility for your backups? With any game project I have like thirty or forty versions sitting in a folder. I save new versions often just in case something bad does happen. It's best to err on the side of caution, that way when you do lose work (and it will happen) you've only lost a few minutes of work, rather than hours or days.
You know where the save button is. It's not Construct's fault you don't use it as often as you should.
Well, I should do, every 20 seconds, File>Save as..., then select a different name each time. Not that bad, huh? What, then, if the bug appears on THAT cap, before I save it? I think the auto-backup is really needed, for a beta, or a complete product.