The answer to the question of whether there are any legal disclaimers or other official documents that confirm this depends on the specific situation. In the case of Yearn.finance, there is an official disclaimer available on their website which states that the information provided on their website is for informational purposes only and should not be considered as investment advice or a recommendation to buy or sell any digital asset. It also states that Yearn.finance does not provide any warranties or guarantees regarding the accuracy, reliability, or completeness of the information provided. Therefore, it is important to do your own research before making any investment decisions. As such, this disclaimer should be taken into consideration when making any investment decisions.