They (or someone in cahoots with them) made at least one attempt [0] to lure readers of the Arch Linux subreddit to the malicious PKGBUILD.

IIRC, the post was just a single paragraph, praising how they “found” the zen-browser-patched-bin package on the AUR and how much it helped them.

[0]: https://www.reddit.com/r/archlinux/comments/1m30py8/aur_is_s...