Yes, lots of discussion on HN

AUR packages compromised with Infostealer and Rootkit (297 points, 2 days ago, 224 comments) https://news.ycombinator.com/item?id=48500447

Over 900 Arch Linux Packages Infected with infostealers and rootkits (20 points, 1 day ago) https://news.ycombinator.com/item?id=48507656

Arch Linux Now Believes Malware Incident Under Control: More Than 1,500 Packages (282 points, 15 hours ago, 171 comments) https://news.ycombinator.com/item?id=48516379