This is part of setting up ID thefts, or scams.

I know of several (directly, not just one secondhand anecdote) people that had a huge mess, when someone used their identities for criminal behavior.

If someone claims to work for me, and then goes and causes havoc, using that connection, guess who they'll come after?

Taking thirty seconds to send out a quick report is not "wasting time." Why on Earth would you think of it as such?