Is it safe to publish a person's genome?
It is as safe as to publish your fingerprints. Right now, there is little that anyone can do with your genetic information but in the future, this will change.

One of the feared consequences it concerns what companies may do with that information. Can it be used against you? In some cases, it may.

For example, if you have a predisposition for a genetic disease, then an insurance company may find a way to refuse to insure you. As far I know, right now this is illegal, but you never know.