Just because something is old does not mean its value is (now) negative. Or are you arguing that "everything older than arbitrary date X is by definition broken, not scalable, not secure" or something?
You can have technical debt today from new code you wrote yesterday, when what you wrote for PHP 8 suddenly gets neutered because someone found a massive security hole and the PHP team deprecates a library function from the next release (yes, this is a contrived example). And at the same time, there will be code you wrote for PHP 5 which is still valid and doesn't need to be reworked.
There's a balance to be struck. If someone always (unconsciously) uses "I" when talking about something, people can wonder if they're a lone wolf or if they're taking credit for what others did. If on the other hand, someone only uses "we", then maybe they're not promoting their own capabilities (or they have little to offer). Reality says that you need both in most senior scenarios other than perhaps cookie-cutter jobs - you need someone who can achieve things on their own, but also work well with others when called for or needed. Experienced candidates often use both I and we when talking about work to indicate that they achieved certain things themselves, but also that they recognise it was a team effort overall.
Not that I think AI has a snowflake's chance in hell of telling the difference.
"Turn on, tune up, rock out." -- Billy Gibbons