Mamdani has put a positive vibe on the DSA in general. Despite Segnosaur's repeated claims that being an NYC mayor doesn't mean he gains influence Mamdani sure seems to be in the papers every day. His words seem to be covered aggressively by the right, and there isn't a single right-wing politician that doesn't seem to use him as a boogie man. That's all power, that's all influence, that's all getting attention to Mamdani and his cause(s). You can't say that being mayor will get you fame but not influence. They're directly connected and being the mayor does, in fact, give you international power considering how much international money, businesses, and leaders visit\invest\live in NYC.
I'm not saying Mamdani is going to be an amazing mayor, or anything like that, but he's doing everything in his power to fulfill the obligations he made to New Yorkers.