this is completely wild. i use a mac for my personal computer, but also a mac for work. i ran this on my personal and noticed it was picking up slack chans i participate in often for work. i don't use slack on my personal computer. it has combined both knowledge graphs between the two computers (obviously through the apple platform) once it figured out i am the same person on both laptops. i share very little between the two laptops other than occasionally forwarding an email from a work computer to personal and vice-versa and having the same first/last name on both.
i think this is even more concerning now that i know it is building this graph in a distributed manner across multiple devices.
fyi: slack shows up as com.tinyspeck.chatlyio - it is the internal bundle identifier (Bundle ID) for the official Slack iOS app on Apple devices.
for those that complain about punctuation -- i skip it b/c i have numbness in the left hand due to an injury.