Copilot is a LLM. So it’s just predicting what should come next, word by word, based off the data its been fed. It has no concept of whether or not its answer makes sense.
So if you’ve scraped a bunch of open source github projects that this guy has worked on, he probably has a lot of TODOs assigned to him in various projects. When Copilot sees you typing “TODO(” it tries to predict what the nextthing you’re going to type is. And a common thing to follow “TODO(” in it’s data set is this guy’s username, so it goes ahead and suggests it, whether or not the guy is actually on the project and suggesting him would make any sort of sense.
Have you played Caesar 3 with the Augustus mod? Its like a whole new game. It adds a ton and there’s even a whole fan-made campaign.