So, he wasn't competing anymore. What ever times he "ran" didn't matter anymore. People could have left it there, why didn't they? And why would any of that justify the online bullying campaign against him?
If he wasn't competing he could have just raced without a bib, or just run around town on his own at 5am, nobody would have cared about his teleporting. He called that attention to himself and kept cheating until the absolute second he got called out and demanded to run with an observer to put up or shut up.