Summary; HIDE YOUR GROUPS!!
Contacts > Groups > Click each Group Profile and go looking at the bottom left corner. Click on the box to uncheck Show In My Profile.
Deets from Zeke Onyx;
Howdy, crossposting from my Primfeed since Reddit is another good option of sharing since idk what the privacy settings on Primfeed are without an account.
Also PS: I'm not arguing or playing 'whataboutism', this is what I researched and my conclusions, which are still evolving with more data/information. Argue with your momma, not me.
Multiple times a year we get 'people' jumping into group chats with "Can someone lend me 100L? I promise I will pay it back tomorrow!" (Direct L$/$ scam) or the fake Marketplace Links from compromised accounts (Phishing).
This post is in regards MOSTLY to the 100L Scammers (I lied, Phishing info at the bottom).
You are not assisting in stopping them by being obnoxious to the scammer in the chat-- they are not reading your comments.
The scam is a TWO PART scam I call 'profit/harvest'. They join a group that is free and post their post. They know this will either end with someone kind/naive paying them money (profit), or someone getting mad at them or responding cattily (harvest). Sometimes even both.
They are running a script that will purposefully go into the profiles of the first 5-6 people who respond and SEARCH THEIR PUBLIC GROUPS FOR MORE FREE GROUPS and will AUTO JOIN THEM.