Yeah the actions of one probably mentally ill person is nothing more than a curio.
Someone using a vaccine 217 times is interesting from a science curiosity point of view but useless when it comes to safety or efficacy. All it tells us is that repeatedly using the vaccine in someone who never had a problem with it didn’t cause problems. 1 person taking the vaccine 217 times is useless - 217 people taking the vaccine 1 time tells us much more.