Endorsements Issues

Despite getting several endorsements nearly every game, I just went down from level 2 to 1. This makes no sense. It’s gotta be a bug.

It took weeks to reach level 2, and I lost it in a few hours.

If there is some sort of reporting thing people are using as a weapon, I should at least be made aware that it is going on. Am I playing too well? Do they dislike my choice in characters?

Or are you mad that I took a break from my computer to get some exercise?

It was made very clear, that there is some decay system on the endorsements. Check the official video: Developer Update | Upcoming Social Features | Overwatch - YouTube