"We released a high volume (200+ in H1 2021) of product launches, 30+ leading to integrity regressions"

"There are multiple (15+) teams working on Reels launching a high volume of product improvements (200+ on 2021 H1).This product pace and complexity is leading to greater volatility in integrity." "We released a high volume (200+ in H1 2021) of product launches, 30+ leading to integrity regressions." "Gaps on recommended surface experimentation cause unexpected integrity impacts. Example: biases between CEPd and PD can cause disparities between QE pretests and post-launch topline impact." "Reels presents new and unique integrity system challenges." "Subsurfaces on Reels have different integrity challenges. Example: Reels Tab has higher prevalence of regulated goods, Cover of disturbing content, and RIFU of sexually suggestive content." "System for identifying harmful content in Reels is harder than other content review systems. Systems for identifying harmful content in short form videos works less well compared to images and text, takes longer, and is harder to judge/less accurate." "Features of Reels (see next section) create unexpected challenges for integrity models. For example, the fast paced nature of viral trends require faster recurring training for models to keep up with non-recommendable spikes."