Did they just compete hard to get into the block with CPFP or RBF? Not actually because it was the halvening block but just to get in? 

 Looks like RBF https://mempool.space/tx/2bb85f4b004be6da54f766c17c1e855187327112c231ef2ff35ebad0ea67c69e 

 Yeah, runes project launched

nostr:note10szrx9s3jus5v4qym302phyrc3mywax3wrl87e9u98kctvkuuqfq62535p 

 Colored coins saving bitcoin once again