Businesses of a different industry can use the same name. There is nothing keeping you from using the website for blogging. The computer store might be problematic if it could be construed you are trying to profit from EA’s established trademark. Also, why would you want a .org for a storefront? I’d say get a different domain for your computer store.

Give the crested geckos their independence! (My only knowledge of New Caledonia is gecko-based).

Which is better, “urine us” or “your anus”?

You’re right that default credentials should have gone away a decade ago. From my experience with security cameras, default credentials were the norm ~5 years ago and now most prompt you to create a unique password. That industry typically lags slightly in infosec best practices. I would expect routers to require a higher level of security.