I do taxes for a living.

This blogspam is advocating tax fraud.

Depreciation is permitted for business assets. In order to depreciate the lawnmower, you would need to claim it as a business expense. In order to claim a business expense, you also need to have some business income (net business losses are okay, but not having any income, or having only de minimis income, is a huge red flag). And importantly, you can't use the asset for personal use. Ever.

This type of tax fraud is the #1 cause of tax penalties. And because it's fraud, it also means the IRS has an unlimited time to audit and penalize you for it.

Rich people don't defer their U.S. taxes by buying depreciable property. They do so by buying investment property like stocks, and making charitable donations.