The point of anyone sending you free sneakers initially is feedback. Brands need to know how people that are really into sneakers feel about their products. We're not talking about the liquid diet of digital courage that most cats on Twitter pretend to be. We're talking constructive criticism and valuable information that they can take back to their team and improve on things with. Telling every brand they're the best or the next best thing is only going to make you look like an idiot when they lose millions of dollars in sales because their product flops. Cosign stuff but offer advice that helps people improve when you're asked for your opinion.