For the longest time, Reddit allowed some of the most toxic, explicitly hateful, communities out there. It continued to grow very quickly under those circumstances. Furthermore, the more moderate communities continued to exist. It wasn’t until later, when they were trying to monetize, that Reddit started cracking down on the allowed content.

As much as I disagreed with those communities, I think Reddit was a better place when the admin had a looser hand on which communities could it could not exist

Have you never heard of tunes?

Any idiot can make substantial software changes to almost any modern car with easily available inexpensive hardware. Look up Cobb, ECUtek, openflashtablet, Hondata, etc

You literally just plug it into a port and flash the software