idk, i know this is probably happening on twitter for sus reasons, but in practical terms this seems like a straight upgrade? tumblr lets you hide your likes and thats great - i don't neccessarily need people who i want to have genuine conversations with exposed to my piss kink lmao, or to see that i'm into [name of trashy tv show here]. if anything this will improve engagement because you're not making a Statement everytime you hit the little heart button. generally more privacy is more good isn't it?