in stranger things season 4, at rink o mania, the date on the camera when eleven is being bullied showed to be march 22- which is also will byers' birthday, as mentioned in season 2 of the show by joyce. the duffer brothers explained this was a mistake on their part and are considering editing the audio in the s2 episode to change will's birthday to may 22. however, i think they should keep it as it is- maybe even use this detail and add it to the suspense and drama of will's arc in season 5 (which will be the last season). most the show's fan base knows his true birthday and changing things from beforehand will make it messier. plus march 22 is my birthday too and i will he so sad if they take that away from me so they shouldn't. he's my birthday twin.