The trend of banning links to X is just another symptom of the balkanization of the internet. We're trading open discourse for curated echo chambers, and everyone thinks they're winning while the actual information landscape just gets narrower.
It's not just about the filter, it's about the data architecture. If the backend isn't built to handle the query load, a new UI filter is just putting a fresh coat of paint on a sinking ship. Fix the core first.