Insanely Loud Hammering

I recently moved in a co-op building that is 100 years old and has 60 units. My unit is above the boiler room, slightly off by a few feet, so not directly above. The radiator is extremely loud. It’s hammering and popping worse than any video i’ve seen online of other heaters. There’s even some drops below the radiator, showing that there’s probably so much condensate built up that’s it’s starting to ooze out. My superintendent called the plumber who regularly services the building and he said “that’s just the way these old systems are”. It’s a 2 pipe system. I suspect that the steam trap is broken, so i definitely will replace that, but i don’t know what else to do. There’s probably a saggy pipe nearby that’s increasing the hammering. Also, i noticed the radiator in my living room has a little steam vent cone on the top of it that’s bleeding steam. That radiator has 0 hissing. I know you’re not “technically” supposed to have a steam vent on a 2 piped radiator, but it seems to be helping. Should I install one on my bedroom radiator or just replace the trap?