YC should have someone in staff to handle these requests. For others there should be a company that exists for the sole purpose of handling these types of conve

YC should have someone in staff to handle these requests. For others there should be a company that exists for the sole purpose of handling these types of conversations, letting you focus on your product while they do the do. If a buying founder has their biz dev, corp dev, contact a founder then it is safe for the receiving founder to forward that request to his corp dev, inside or outside their company.