If you also use FreshRSS, you can configure filters to automatically mark new articles as read (e.g. !intitle:'beta'). Since I only view unread articles, that effectively deletes them and I never have to see them!

While I agree with your sentiment, no interoperability obviously hasn’t made people switch to better platforms either. The only difference is that without interoperability, I’m forced to still use WhatsApp to communicate with those unwilling / unable to switch.