What exactly does "Safe to leave" mean?

When one of your team members disconnects at the beginning of the game and doesn't come back in certain amount of time, the game is set to "Safe to leave".

I did some research on that subject, and almost everyone has different opinion on it. Some say that when the game is marked as "safe to leave" you wont get an "abandoned" point but will get loss while some say you'll get neither.

So what exactly does "Safe to leave" do? If you leave the "Safe to leave" game and start another, will it count as loss? If you continue playing the "Safe to leave" game and you win, will that win count? If the game gets marked as "Safe to leave," does that means someone from enemy team can leave the game too and not get any loss or abandon point?

In case you don't get neither loss nor abandon point when you leave the "Safe to leave" game, what happens if you decide to stick until the end and you win or lose the match. Will those wins/losses count?