Pointing out here that this reporting system (VAERS) is not an official scientific source of vaccine effects[1]. These reports are completely self reported with no follow up/verification. You can basically report any symptoms and it will get accepted.
Take this case:
> Indeed, an autism activist named Jim Laidler once reported to VAERS that a vaccine had turned him into The Incredible Hulk. The report was accepted and entered into the database, but the dubious nature thereof prompted a VAERS representative to contact Mr. Laidler, who then gave his consent to delete the report[2]
So there actually has been no study here to see if there is a link been the vaccine and tinnitus. Its possible that these people developed tinnitus independent of the vaccine.
Often VAERS is used by anti-vaxxer's to spread misinformation.
[1] https://www.reuters.com/article/factcheck-vaers-deaths-idUSL... [2] https://en.wikipedia.org/wiki/Vaccine_Adverse_Event_Reportin...