I didn't see too much spam, maybe this? https://rss.ponder.cat/post/149577
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https://rss.ponder.cat/post/34622
That's because there is an extensive blacklist which is filtering out the spam. They're just trying to pay their bills by slipping advertisements into their story feed. I'm not mad about it but I don't want to be posting them to Lemmy. It seems like with the blacklist in place, it's more or less okay. I guess. No one set up any kind of bitter complaints on this post and usually people are pretty vocal about things that are a problem.
The one you linked to isn't a real great article but it's not just pure spam. There was one this morning ("Here’s what to shop for at the Sephora spring sale") that slipped through the filters, I got a couple of reports and deleted it and updated the filters.