http://www.pcgamer.com/bungie-third-party-apps-will-not-result-in-destiny-2-bans/

If you've visited the Destiny 2 subreddit in the last 12 hours, you may have noticed reports of players getting banned for using incompatible third-party software. Bungie has now responded, saying this is not the case. 

According to the subreddit, popular overlay applications such as Discord, Fraps, and MSI Afterburning are said to prompt perma-bans—as well as capture apps like OBS and XSplit.