While I can't comment on this specific case, I do want to say there is a tremendous amount of rigor (and layers of protection) to ensure the end clients are resilient to misbehaving computers and do the right thing. For example, you shouldn't have to worry about the clock being accurate as it has no bearing on the final sync state.

Just to dive in a bit for the HN crowd: We base the changes that should be applied to your Dropbox on whether the client has successfully synced the previous version of the file. The server doesn't allow the client to apply changes unless the client is fully up to date. And in the case of deletions, the desktop client is only permitted to issue deletes to files that have been successfully created on disk and then later deleted.

We also have a proper support team to catch things that fall through the cracks, and if you have issues, you should reach out to them first (and as soon as you notice; their ability to fix things becomes harder the more changes you make to your account).

Again, not commenting on the above issue, but I did want to point out that we take the integrity of your data very, very seriously.