Charles Hoskinson, founder of Cardano, addressed tensions with the Cardano Foundation regarding missed opportunities for stablecoin integrations, particularly USDC. He criticized the Foundation for rejecting a $3 million deal in 2021 and emphasized the community's demand for stablecoin support, warning that the ecosystem's growth is at risk without it. Meanwhile, discussions with Ripple about integrating their RLUSD stablecoin are underway, with Hoskinson expressing optimism about potential collaborations to enhance Cardano's stablecoin ecosystem.