How to use Dropbox as a git server?

Agreed. It's not running Git as a server, just putting the repository somewhere public.

Not only that, but you could have multiple users to begin with. Since all files are synced on save, two people couldn't be working at the same time. Well, I guess they could, but good luck editing the same file. Or even trying to commit. You could easily overwrite the other persons files without knowing it.

Yeah, I think people may be overthinking this, although there's something to be said for "two great tastes that taste great together". It's kind of silly, but I actually wrote a "git dropbox" command to just stuff a bare repo of what I'm doing in my Dropbox so I don't have to think about it... and I kind of like it. Maybe it's overkill, but if I only have to type one command, it's easy enough I won't think about it :-) (https://github.com/agnoster/git-dropbox/ for what it's worth)

Agreed it's a dangerous idea for collaboration, unless you are the only one pushing to it and everyone else just pulls. That could work as a simple way to make your git repo pull-accessible to others without using a separate service or server (assuming you both have Dropbox already, of course).

I completely agree. This is a perfect example of 'just because you can do it doesn't mean you should'.

its not...