Already pretty „spamy“. Clients probably have to implement features to adept for that.
Discussion
The best design is not to have re-post like coracle.
Second best is to have re-posts as opt-in.
Third best is an option to opt out of re-post functionality.
And I replied to the wrong thread.
Yes, apps and relays play a cat and mouse battle with spam.
Won‘t it also be moral thing. Deciding what is spam and what is no spam, like what’s a truth and what’s a lie?
If you post the same message 100 times in 10 seconds its clear.