I periodically receive messages, one liners to go to another site.
Other apps such as Grindr will suspended an account if ads link is posted. 1st time, a one hour suspension, second time, permanent suspension.
Isn't this something Grindr could do? I'm not sure if it qualifies as SPAM but I still report it.
If implemented, the app could kill the message before received and penalize the sender as suggested above.
If you need an example, I screenshotted one just received but nowhere here to attach