What if you invite them into your home and then 2 years later, you see that they have decorated their house with obvious inspiration from your own home decor?
You have to also factor in the difference in size:
What if you invite them into your home and then 2 years later you see they have decorated their dogs house with obvious inspiration from your own home decor.
If that's what it means, well, seeing the code two years ago is a total non-issue where the setup is so basic and the majority of languages are new ones.
But your interpretation seems way too generous when he compares it to going into your house and stealing from you.