SN has definitely caught the attention of scammers/spammers. I have been trying to help by watching the Recent page and flagging anything that is obviously spam or a scam. But there's only so much a stacker can do.

100 sats wouldn't be enough; spammers/scammers make way more than that on a single click-through. 10k+ might work, but that would destroy SN.

One alternative is to charge a penalty after-the-fact if a link turns out to be, for instance, a shitcoin referal link. Such penalties would need to be very clearly stated both in the ToS and newsletter.

Another alternative is to do some filtering on the client-side. I have considered making a blacklist of certain websites, but a whitelist might be more appropriate.